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87-705: The name Făget literally means ' beech forest' in Romanian . Făget is located in the southwest of Romania, in the contact area of the Lugoj Plain with the Lugoj Hills, on the upper course of the Bega River . Within Timiș County, it is located in its eastern part, 98 km (61 mi) from Timișoara and 33 km (21 mi) from Lugoj , to which it is connected by national road 68A. The same road to

174-473: A druse (a layer of crystals lining a void), of which quartz geodes are particularly fine examples. The crystals are attached at one end to the enclosing rock, and only one termination pyramid is present. However, doubly terminated crystals do occur where they develop freely without attachment, for instance, within gypsum . α-quartz crystallizes in the trigonal crystal system, space group P 3 1 21 or P 3 2 21 (space group 152 or 154 resp.) depending on

261-452: A framework silicate mineral and compositionally as an oxide mineral . Quartz is the second most abundant mineral in Earth 's continental crust , behind feldspar . Quartz exists in two forms, the normal α-quartz and the high-temperature β-quartz, both of which are chiral . The transformation from α-quartz to β-quartz takes place abruptly at 573 °C (846 K; 1,063 °F). Since

348-560: A pressure cooker . However, the quality and size of the crystals that were produced by these early efforts were poor. Elemental impurity incorporation strongly influences the ability to process and utilize quartz. Naturally occurring quartz crystals of extremely high purity, necessary for the crucibles and other equipment used for growing silicon wafers in the semiconductor industry, are expensive and rare. These high-purity quartz are defined as containing less than 50 ppm of impurity elements. A major mining location for high purity quartz

435-475: A "custom house for Transylvania and Hungary". In the 17th and 18th centuries, attempts were made to colonize workers of other nationalities to work on forest exploitations, but the impact is small and Făget remains a center of Romanianism at a time when western Banat was intensely colonized. In 1900, attempts were made to settle the first families of Hungarian settlers in Colonia Mică. On 5 July 1994, Făget

522-651: A bitter, astringent, or in some cases, mild and nut-like taste. According to the Roman statesman Pliny the Elder in his work Natural History , beechnut was eaten by the people of Chios when the town was besieged, writing of the fruit: "that of the beech is the sweetest of all; so much so, that, according to Cornelius Alexander, the people of the city of Chios, when besieged, supported themselves wholly on mast". They can also be roasted and pulverized into an adequate coffee substitute . The leaves can be steeped in liquor to give

609-663: A burial context, such as Newgrange or Carrowmore in Ireland . Quartz was also used in Prehistoric Ireland , as well as many other countries, for stone tools ; both vein quartz and rock crystal were knapped as part of the lithic technology of the prehistoric peoples. While jade has been since earliest times the most prized semi-precious stone for carving in East Asia and Pre-Columbian America, in Europe and

696-429: A decorative wood. The timber can be used to build chalets, houses, and log cabins. Beech wood is used for the stocks of military rifles when traditionally preferred woods such as walnut are scarce or unavailable or as a lower-cost alternative. The edible fruit of the beech tree, known as beechnuts or mast, is found in small burrs that drop from the tree in autumn. They are small, roughly triangular, and edible, with

783-487: A defining constituent of granite and other felsic igneous rocks . It is very common in sedimentary rocks such as sandstone and shale . It is a common constituent of schist , gneiss , quartzite and other metamorphic rocks . Quartz has the lowest potential for weathering in the Goldich dissolution series and consequently it is very common as a residual mineral in stream sediments and residual soils . Generally

870-584: A high presence of quartz suggests a " mature " rock, since it indicates the rock has been heavily reworked and quartz was the primary mineral that endured heavy weathering. While the majority of quartz crystallizes from molten magma , quartz also chemically precipitates from hot hydrothermal veins as gangue , sometimes with ore minerals like gold, silver and copper. Large crystals of quartz are found in magmatic pegmatites . Well-formed crystals may reach several meters in length and weigh hundreds of kilograms. The largest documented single crystal of quartz

957-399: A letter of the alphabet) is буква ( bukva ), while Serbo-Croatian and Slovene use " bukva " to refer to the tree. The pigment bistre was made from beech wood soot . Beech litter raking as a replacement for straw in animal husbandry was an old non-timber practice in forest management that once occurred in parts of Switzerland in the 17th century. Beech has been listed as one of

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1044-459: A light green/yellow liqueur. In antiquity, the bark of the beech tree was used by Indo-European people for writing-related purposes, especially in a religious context. Beech wood tablets were a common writing material in Germanic societies before the development of paper . The Old English bōc has the primary sense of "beech" but also a secondary sense of "book", and it is from bōc that

1131-490: A long history of cultivation, Bulgaria for example, do not exhibit this pattern, so how much human activity has influenced the spread of beech trees is as yet unclear. The primeval beech forests of the Carpathians are also an example of a singular, complete, and comprehensive forest dominated by a single tree species - the beech tree. Forest dynamics here were allowed to proceed without interruption or interference since

1218-687: A naturally growing forest tree, beech marks the important border between the European deciduous forest zone and the northern pine forest zone. This border is important for wildlife and fauna. In Denmark and Scania at the southernmost peak of the Scandinavian peninsula, southwest of the natural spruce boundary, it is the most common forest tree. It grows naturally in Denmark and southern Norway and Sweden up to about 57–59°N. The most northern known naturally growing (not planted) beech trees are found in

1305-511: A relatively short period of time the most important locality in the area. The fortress was finally demolished by the Turks in 1699. Immediately after Banat was conquered by the Austrians in 1717, Făget had only 20 houses left, but it was the center of a district with 42 communes. After this period of decline, the town began to grow again and in 1787 received the right to hold eight fairs a year. At

1392-789: A separate family, the Nothofagaceae (which remains a member of the order Fagales ). They are found throughout the Southern Hemisphere in Australia , New Zealand , New Guinea , New Caledonia , as well as Argentina and Chile (principally Patagonia and Tierra del Fuego ). Species treated in Denk et al. (2024) and listed in Plants of the World Online (POWO) : Erroneously synonymized by some authors (e.g. POWO) with

1479-574: A small Brazilian mine, but it is also seen in Lower Silesia in Poland . Naturally occurring prasiolite is also found in the Thunder Bay area of Canada . Quartz crystals have piezoelectric properties; they develop an electric potential upon the application of mechanical stress . Quartz's piezoelectric properties were discovered by Jacques and Pierre Curie in 1880. Quartz is

1566-560: A small grove north of Bergen on the west coast of Norway. Near the city of Larvik is the largest naturally occurring beech forest in Norway, Bøkeskogen . Some research suggests that early agriculture patterns supported the spread of beech in continental Europe. Research has linked the establishment of beech stands in Scandinavia and Germany with cultivation and fire disturbance, i.e. early agricultural practices. Other areas which have

1653-437: A submicroscopic distribution of colloidal ferric hydroxide impurities. Natural citrines are rare; most commercial citrines are heat-treated amethysts or smoky quartzes . However, a heat-treated amethyst will have small lines in the crystal, as opposed to a natural citrine's cloudy or smoky appearance. It is nearly impossible to differentiate between cut citrine and yellow topaz visually, but they differ in hardness . Brazil

1740-578: A substantially different nucleome (nuclear DNA) , especially in noncoding, highly variable gene regions such as the spacers of the nuclear-encoded ribosomal RNA genes (ribosomal DNA) . Further differentiating characteristics include the whitish bloom on the underside of the leaves, the visible tertiary leaf veins, and a long, smooth cupule-peduncle. Originally proposed but not formalized by botanist Chung-Fu Shen in 1992, this group comprised two Japanese species, F. japonica and F. okamotoi, and one Chinese species, F. engleriana . While

1827-680: A superstition that it would bring prosperity. Citrine was first appreciated as a golden-yellow gemstone in Greece between 300 and 150 BC, during the Hellenistic Age . Yellow quartz was used prior to that to decorate jewelry and tools but it was not highly sought after. Milk quartz or milky quartz is the most common variety of crystalline quartz. The white color is caused by minute fluid inclusions of gas, liquid, or both, trapped during crystal formation, making it of little value for optical and quality gemstone applications. Rose quartz

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1914-440: A tone between those of maple and birch , the two most popular drum woods. The textile modal is a kind of rayon often made wholly from reconstituted cellulose of pulped beech wood. The European species Fagus sylvatica yields a tough, utility timber. It weighs about 720 kg per cubic metre and is widely used for furniture construction, flooring, and engineering purposes, in plywood and household items, but rarely as

2001-524: A utility timber used for furniture construction, flooring and engineering purposes, in plywood, and household items. The timber can be used to build homes. Beechwood makes excellent firewood . Slats of washed beech wood are spread around the bottom of fermentation tanks for Budweiser beer. Beech logs are burned to dry the malt used in some German smoked beers . Beech is also used to smoke Westphalian ham , andouille sausage, and some cheeses. Beeches are monoecious , bearing both male and female flowers on

2088-795: A variety of spine- to scale-like appendages, the character of which is, in addition to leaf shape, one of the primary ways beeches are differentiated. The nuts are called beechnuts or beech mast and have a bitter taste (though not nearly as bitter as acorns ) and a high tannin content. The most recent classification system of the genus recognizes 14 species in two distinct subgenera, subgenus Englerianae and Fagus . Beech species can be diagnosed by phenotypical and/or genotypical traits. Species of subgenus Engleriana are found only in East Asia, and are notably distinct from species of subgenus Fagus in that these beeches are low-branching trees, often made up of several major trunks with yellowish bark and

2175-542: Is a form of quartz that ranges from a bright vivid violet to a dark or dull lavender shade. The world's largest deposits of amethysts can be found in Brazil, Mexico, Uruguay, Russia, France, Namibia, and Morocco. Sometimes amethyst and citrine are found growing in the same crystal. It is then referred to as ametrine . Amethyst derives its color from traces of iron in its structure. Blue quartz contains inclusions of fibrous magnesio-riebeckite or crocidolite . Inclusions of

2262-419: Is a monoclinic polymorph. Lechatelierite is an amorphous silica glass SiO 2 which is formed by lightning strikes in quartz sand . As quartz is a form of silica, it is a possible cause for concern in various workplaces. Cutting, grinding, chipping, sanding, drilling, and polishing natural and manufactured stone products can release hazardous levels of very small, crystalline silica dust particles into

2349-463: Is a primary identifier for the macrocrystalline varieties. Pure quartz, traditionally called rock crystal or clear quartz, is colorless and transparent or translucent and has often been used for hardstone carvings , such as the Lothair Crystal . Common colored varieties include citrine, rose quartz, amethyst, smoky quartz, milky quartz, and others. These color differentiations arise from

2436-400: Is a type of quartz that exhibits a pale pink to rose red hue. The color is usually considered as due to trace amounts of titanium , iron , or manganese in the material. Some rose quartz contains microscopic rutile needles that produce asterism in transmitted light. Recent X-ray diffraction studies suggest that the color is due to thin microscopic fibers of possibly dumortierite within

2523-415: Is found only in East Asia, distinctive for its low branches, often made up of several major trunks with yellowish bark. The better known species of subgenus Fagus are native to Europe , western and eastern Asia and eastern North America. They are high-branching trees with tall, stout trunks and smooth silver-grey bark. The European beech Fagus sylvatica is the most commonly cultivated species, yielding

2610-428: Is not planted much as an ornamental due to slower growth and less resistance to urban pollution. It most commonly occurs as an overstory component in the northern part of its range with sugar maple, transitioning to other forest types further south such as beech-magnolia. American beech is rarely encountered in developed areas except as a remnant of a forest that was cut down for land development. The dead brown leaves of

2697-523: Is often twinned , synthetic quartz is produced for use in industry. Large, flawless, single crystals are synthesized in an autoclave via the hydrothermal process . Like other crystals, quartz may be coated with metal vapors to give it an attractive sheen. Quartz is the most common material identified as the mystical substance maban in Australian Aboriginal mythology . It is found regularly in passage tomb cemeteries in Europe in

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2784-719: Is the mineral defining the value of 7 on the Mohs scale of hardness , a qualitative scratch method for determining the hardness of a material to abrasion. The word "quartz" is derived from the German word Quarz , which had the same form in the first half of the 14th century in Middle High German and in East Central German and which came from the Polish dialect term twardy , which corresponds to

2871-729: Is the Spruce Pine Gem Mine in Spruce Pine, North Carolina , United States. Quartz may also be found in Caldoveiro Peak , in Asturias , Spain. By the 1930s, the electronics industry had become dependent on quartz crystals. The only source of suitable crystals was Brazil; however, World War II disrupted the supplies from Brazil, so nations attempted to synthesize quartz on a commercial scale. German mineralogist Richard Nacken (1884–1971) achieved some success during

2958-475: Is the leading producer of citrine, with much of its production coming from the state of Rio Grande do Sul . The name is derived from the Latin word citrina which means "yellow" and is also the origin of the word " citron ". Sometimes citrine and amethyst can be found together in the same crystal, which is then referred to as ametrine . Citrine has been referred to as the "merchant's stone" or "money stone", due to

3045-559: Is the most commonly cultivated, although few important differences are seen between species aside from detail elements such as leaf shape. The leaves of beech trees are entire or sparsely toothed, from 5–15 centimetres (2–6 inches) long and 4–10 cm (2–4 in) broad. The bark is smooth and light gray. The fruit is a small, sharply three-angled nut 10–15 mm ( 3 ⁄ 8 – 5 ⁄ 8  in) long, borne singly or in pairs in soft-spined husks 1.5–2.5 cm ( 5 ⁄ 8 –1 in) long, known as cupules. The husk can have

3132-412: Is used for very accurate measurements of very small mass changes in the quartz crystal microbalance and in thin-film thickness monitors . Almost all the industrial demand for quartz crystal (used primarily in electronics) is met with synthetic quartz produced by the hydrothermal process. However, synthetic crystals are less prized for use as gemstones. The popularity of crystal healing has increased

3219-591: The Czech term tvrdý ("hard"). Some sources, however, attribute the word's origin to the Saxon word Querkluftertz , meaning cross-vein ore . The Ancient Greeks referred to quartz as κρύσταλλος ( krustallos ) derived from the Ancient Greek κρύος ( kruos ) meaning "icy cold", because some philosophers (including Theophrastus ) understood the mineral to be a form of supercooled ice. Today,

3306-653: The cryptic sister species F. hayatae and F. pashanica ) , two pseudo-cryptic species in eastern North America ( F. grandifolia , F. mexicana ), and a species complex of at least four species ( F. caspica , F. hohenackeriana , F. orientalis , F. sylvatica ) in Western Eurasia . Their genetics are highly complex and include both species-unique alleles as well as alleles and ribosomal DNA spacers that are shared between two or more species. The western Eurasian species are characterized by morphological and genetical gradients. Research suggests that

3393-524: The hexagonal crystal system above 573 °C (846 K; 1,063 °F). The ideal crystal shape is a six-sided prism terminating with six-sided pyramid-like rhombohedrons at each end. In nature, quartz crystals are often twinned (with twin right-handed and left-handed quartz crystals), distorted, or so intergrown with adjacent crystals of quartz or other minerals as to only show part of this shape, or to lack obvious crystal faces altogether and appear massive . Well-formed crystals typically form as

3480-620: The 1930s and 1940s. After the war, many laboratories attempted to grow large quartz crystals. In the United States, the U.S. Army Signal Corps contracted with Bell Laboratories and with the Brush Development Company of Cleveland, Ohio to synthesize crystals following Nacken's lead. (Prior to World War II, Brush Development produced piezoelectric crystals for record players.) By 1948, Brush Development had grown crystals that were 1.5 inches (3.8 cm) in diameter,

3567-425: The 38 plants whose flowers are used to prepare Bach flower remedies . Quartz sand Quartz is a hard, crystalline mineral composed of silica ( silicon dioxide ). The atoms are linked in a continuous framework of SiO 4 silicon–oxygen tetrahedra , with each oxygen being shared between two tetrahedra, giving an overall chemical formula of SiO 2 . Quartz is, therefore, classified structurally as

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3654-636: The American beech remain on the branches until well into the following spring, when the new buds finally push them off. East Asia is home to eight species of Fagus , only one of which ( F. crenata ) is occasionally planted in Western countries. Smaller than F. sylvatica and F. grandifolia , this beech is one of the most common hardwoods in its native range. Beech grows on a wide range of soil types, acidic or basic, provided they are not waterlogged. The tree canopy casts dense shade and thickens

3741-671: The Crimean F. × taurica, from which it differs morphologically and genetically. Numerous species have been named globally from the fossil record spanning from the Cretaceous to the Pleistocene . Fossil species formerly placed in Fagus include: The name of the tree in Latin, fagus (from whence the generic epithet ), is cognate with English "beech" and of Indo-European origin, and played an important role in early debates on

3828-457: The Earth's crust exposed to high temperatures, thereby damaging materials containing quartz and degrading their physical and mechanical properties. Although many of the varietal names historically arose from the color of the mineral, current scientific naming schemes refer primarily to the microstructure of the mineral. Color is a secondary identifier for the cryptocrystalline minerals, although it

3915-466: The Middle East the different varieties of quartz were the most commonly used for the various types of jewelry and hardstone carving , including engraved gems and cameo gems , rock crystal vases , and extravagant vessels. The tradition continued to produce objects that were very highly valued until the mid-19th century, when it largely fell from fashion except in jewelry. Cameo technique exploits

4002-441: The air that workers breathe. Crystalline silica of respirable size is a recognized human carcinogen and may lead to other diseases of the lungs such as silicosis and pulmonary fibrosis . Not all varieties of quartz are naturally occurring. Some clear quartz crystals can be treated using heat or gamma-irradiation to induce color where it would not otherwise have occurred naturally. Susceptibility to such treatments depends on

4089-407: The bands of color in onyx and other varieties. Efforts to synthesize quartz began in the mid-nineteenth century as scientists attempted to create minerals under laboratory conditions that mimicked the conditions in which the minerals formed in nature: German geologist Karl Emil von Schafhäutl (1803–1890) was the first person to synthesize quartz when in 1845 he created microscopic quartz crystals in

4176-521: The bottom of fermentation tanks for Budweiser beer. This provides a complex surface on which the yeast can settle, so that it does not pile up, preventing yeast autolysis which would contribute off-flavours to the beer. Beech logs are burned to dry the malt used in German smoked beers . Beech is also used to smoke Westphalian ham , traditional andouille (an offal sausage) from Normandy, and some cheeses. Some drums are made from beech, which has

4263-444: The chirality. Above 573 °C (846 K; 1,063 °F), α-quartz in P 3 1 21 becomes the more symmetric hexagonal P 6 4 22 (space group 181), and α-quartz in P 3 2 21 goes to space group P 6 2 22 (no. 180). These space groups are truly chiral (they each belong to the 11 enantiomorphous pairs). Both α-quartz and β-quartz are examples of chiral crystal structures composed of achiral building blocks (SiO 4 tetrahedra in

4350-466: The crystal structure. Prase is a green variety of quartz. The green color is caused by inclusions of amphibole . Prasiolite , also known as vermarine , is a variety of quartz that is green in color. The green is caused by iron ions. It is a rare mineral in nature and is typically found with amethyst; most "prasiolite" is not natural – it has been artificially produced by heating of amethyst. Since 1950 , almost all natural prasiolite has come from

4437-433: The crystals. Tridymite and cristobalite are high-temperature polymorphs of SiO 2 that occur in high-silica volcanic rocks. Coesite is a denser polymorph of SiO 2 found in some meteorite impact sites and in metamorphic rocks formed at pressures greater than those typical of the Earth's crust. Stishovite is a yet denser and higher-pressure polymorph of SiO 2 found in some meteorite impact sites. Moganite

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4524-578: The disease has become widespread in Connecticut, Massachusetts and Rhode Island, and in portions of coastal New Hampshire and coastal and central Maine. The beech most commonly grown as an ornamental tree is the European beech ( Fagus sylvatica ), widely cultivated in North America as well as its native Europe. Many varieties are in cultivation, notably the weeping beech F. sylvatica 'Pendula', several varieties of copper or purple beech,

4611-479: The east connects the town with Deva , 68 km (42 mi) away. The town is also crossed by CFR line 212 (Lugoj–Făget– Ilia ). Făget Fortress is documented for the first time in 1548, as the property of Jakab Békés and bearing the name Fagyath . Between 1594–1602 Făget was the property of the Ban of Lugoj . In 1602 it was besieged and destroyed by the Turks, after which it fell into ruin. For 150 years it has been

4698-821: The eastern United States and southeastern Canada, with a disjunct sister species in Mexico ( F. mexicana ). There are the only extant (surviving) Fagus species in the Western Hemisphere. Before the Pleistocene Ice Age, it is believed to have spanned the entire width of the continent from the Atlantic Ocean to the Pacific but now is confined to the east of the Great Plains. F. grandifolia tolerates hotter climates than European species but

4785-559: The end of the 18th century, Johann Lehmann wrote: Făget is a beautiful country town. The place is rich because of the animal fairs that are held here. The town is Romanian, has over 200 houses and two churches. The inn in Făget is the most beautiful and the cleanest and most spacious on the whole Timișoara–Sibiu line and this inn is the property of Mrs. Soro [the wife of the commander of the Timișoara Fortress ]. There are eight guest rooms in

4872-662: The exception of the Western Eurasian and North American species. Fagus is the first diverging lineage in the evolution of the Fagaceae family, which also includes oaks and chestnuts . The oldest fossils that can be assigned to the beech lineage are 81–82 million years old pollen from the Late Cretaceous of Wyoming , United States. The southern beeches (genus Nothofagus ) historically thought closely related to beeches, are treated as members of

4959-728: The fern-leaved beech F. sylvatica 'Asplenifolia', and the tricolour beech F. sylvatica 'Roseomarginata'. The columnar Dawyck beech ( F. sylvatica 'Dawyck') occurs in green, gold, and purple forms, named after Dawyck Botanic Garden in the Scottish Borders, one of the four garden sites of the Royal Botanic Garden Edinburgh . Beech wood is an excellent firewood , easily split and burning for many hours with bright but calm flames. Slats of beech wood are washed in caustic soda to leach out any flavour or aroma characteristics and are spread around

5046-759: The first representatives of the modern-day genus were already present in the Paleocene of Arctic North America (western Greenland ) and quickly radiated across the high latitudes of the Northern Hemisphere , with a first diversity peak in the Miocene of northeastern Asia . The contemporary species are the product of past, repeated reticulate evolutionary processes ( outbreeding , introgression , hybridization ). As far as studied, heterozygosity and intragenomic variation are common in beech species, and their chloroplast genomes are nonspecific with

5133-491: The geographical origins of the Indo-European people , the beech argument . Greek φηγός (figós) is from the same root, but the word was transferred to the oak tree (e.g. Iliad 16.767) as a result of the absence of beech trees in southern Greece . Fagus sylvatica was a late entrant to Great Britain after the last glaciation, and may have been restricted to basic soils in the south of England. Some suggest that it

5220-479: The ground with leaf litter . In North America, they can form beech-maple climax forests by partnering with the sugar maple . The beech blight aphid ( Grylloprociphilus imbricator ) is a common pest of American beech trees. Beeches are also used as food plants by some species of Lepidoptera . Beech bark is extremely thin and scars easily. Since the beech tree has such delicate bark, carvings, such as lovers' initials and other forms of graffiti, remain because

5307-442: The hands. This idea persisted until at least the 17th century. He also knew of the ability of quartz to split light into a spectrum . In the 17th century, Nicolas Steno 's study of quartz paved the way for modern crystallography . He discovered that regardless of a quartz crystal's size or shape, its long prism faces always joined at a perfect 60° angle. Quartz belongs to the trigonal crystal system at room temperature, and to

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5394-437: The impurities of phosphate and aluminium that formed crystalline rose quartz, unlike the iron and microscopic dumortierite fibers that formed rose quartz. Smoky quartz is a gray, translucent version of quartz. It ranges in clarity from almost complete transparency to a brownish-gray crystal that is almost opaque. Some can also be black. The translucency results from natural irradiation acting on minute traces of aluminum in

5481-487: The inn. The travelers are well served, but a very expensive price. On the same note, Italian traveler Domenico Sestini  [ it ] noted that, at the beginning of the 19th century, Făget had "200 Romanian houses with two churches and over 30 German houses with a small but clean church, served by the Minorite monks from Lugoj". Făget was also an important connection point between Banat and Transylvania, here being

5568-452: The largest at that time. By the 1950s, hydrothermal synthesis techniques were producing synthetic quartz crystals on an industrial scale, and today virtually all the quartz crystal used in the modern electronics industry is synthetic. An early use of the piezoelectricity of quartz crystals was in phonograph pickups. One of the most common piezoelectric uses of quartz today is as a crystal oscillator . The quartz oscillator or resonator

5655-519: The last ice age. Nowadays, they are amongst the last pure beech forests in Europe to document the undisturbed postglacial repopulation of the species, which also includes the unbroken existence of typical animals and plants. These virgin beech forests and similar forests across 12 countries in continental Europe were inscribed on the UNESCO World Heritage List in 2007. The American beech ( Fagus grandifolia ) occurs across much of

5742-517: The location from which the quartz was mined. Prasiolite, an olive colored material, is produced by heat treatment; natural prasiolite has also been observed in Lower Silesia in Poland. Although citrine occurs naturally, the majority is the result of heat-treating amethyst or smoky quartz. Carnelian has been heat-treated to deepen its color since prehistoric times. Because natural quartz

5829-421: The mineral dumortierite within quartz pieces often result in silky-appearing splotches with a blue hue. Shades of purple or gray sometimes also are present. "Dumortierite quartz" (sometimes called "blue quartz") will sometimes feature contrasting light and dark color zones across the material. "Blue quartz" is a minor gemstone. Citrine is a variety of quartz whose color ranges from pale yellow to brown due to

5916-429: The modern word derives. In modern German, the word for "book" is Buch, with Buche meaning "beech tree". In modern Dutch, the word for "book" is boek, with beuk meaning "beech tree". In Swedish, these words are the same, bok meaning both "beech tree" and "book". There is a similar relationship in some Slavic languages. In Russian and Bulgarian , the word for beech is бук ( buk ), while that for "letter" (as in

6003-444: The population, religious affiliation is unknown. The economic sector of production is represented by companies active in the field of leather processing in footwear and leather goods, exploitation and processing of wood of various essences, from lumber to furniture, a section for exploitation and processing of quartz sand and companies active in various branches of the food industry, especially milk processing and pastry production. In

6090-494: The presence of impurities which change the molecular orbitals, causing some electronic transitions to take place in the visible spectrum causing colors. The most important distinction between types of quartz is that of macrocrystalline (individual crystals visible to the unaided eye) and the microcrystalline or cryptocrystalline varieties ( aggregates of crystals visible only under high magnification). The cryptocrystalline varieties are either translucent or mostly opaque, while

6177-403: The present case). The transformation between α- and β-quartz only involves a comparatively minor rotation of the tetrahedra with respect to one another, without a change in the way they are linked. However, there is a significant change in volume during this transition, and this can result in significant microfracturing in ceramics during firing, in ornamental stone after a fire and in rocks of

6264-510: The quartz. Additionally, there is a rare type of pink quartz (also frequently called crystalline rose quartz) with color that is thought to be caused by trace amounts of phosphate or aluminium . The color in crystals is apparently photosensitive and subject to fading. The first crystals were found in a pegmatite found near Rumford , Maine , US, and in Minas Gerais , Brazil. The crystals found are more transparent and euhedral, due to

6351-455: The same plant. The small flowers are unisexual, the female flowers borne in pairs, the male flowers wind-pollinating catkins . They are produced in spring shortly after the new leaves appear. The fruit of the beech tree, known as beechnuts or mast, is found in small burrs that drop from the tree in autumn. They are small, roughly triangular, and edible, with a bitter, astringent, or mild and nut-like taste. The European beech ( Fagus sylvatica )

6438-793: The status of F. okamotoi remains uncertain, the most recent systematic treatment based on morphological and genetic data confirmed a third species, F. multinervis, endemic to Ulleungdo , a South Korean island in the Sea of Japan . The beeches of Ulleungdo have been traditionally treated as a subspecies of F. engleriana, to which they are phenotypically identical, or as a variety of F. japonica. The differ from their siblings by their unique nuclear and plastid genotypes. The better known subgenus Fagus beeches are high-branching with tall, stout trunks and smooth silver-gray bark. This group includes five extant species in continental and insular East Asia ( F. crenata , F. longipetiolata , F. lucida , and

6525-416: The subject of fierce confrontations between Romanians, Turks and Austrians, which is also confirmed by archaeological excavations. The picturesque landscape of Făget, the intense spiritual activity and its famous fairs attracted the attention of some foreign travelers who passed through Transylvania and Banat. In 1660, Turkish traveler Evliya Çelebi , passing through Făget, described the medieval fortress: It

6612-464: The term rock crystal is sometimes used as an alternative name for transparent coarsely crystalline quartz. Roman naturalist Pliny the Elder believed quartz to be water ice , permanently frozen after great lengths of time. He supported this idea by saying that quartz is found near glaciers in the Alps, but not on volcanic mountains, and that large quartz crystals were fashioned into spheres to cool

6699-438: The transformation is accompanied by a significant change in volume, it can easily induce microfracturing of ceramics or rocks passing through this temperature threshold. There are many different varieties of quartz, several of which are classified as gemstones . Since antiquity, varieties of quartz have been the most commonly used minerals in the making of jewelry and hardstone carvings , especially in Europe and Asia. Quartz

6786-414: The transparent varieties tend to be macrocrystalline. Chalcedony is a cryptocrystalline form of silica consisting of fine intergrowths of both quartz, and its monoclinic polymorph moganite . Other opaque gemstone varieties of quartz, or mixed rocks including quartz, often including contrasting bands or patterns of color, are agate , carnelian or sard, onyx , heliotrope , and jasper . Amethyst

6873-622: The tree is unable to heal itself. Beech bark disease is a fungal infection that attacks the American beech through damage caused by scale insects. Infection can lead to the death of the tree. Beech leaf disease is a disease that affects American beeches spread by the newly discovered nematode, Litylenchus crenatae mccannii . This disease was first discovered in Lake County, Ohio, in 2012 and has now spread to over 41 counties in Ohio, Pennsylvania, New York, and Ontario, Canada. As of 2024,

6960-544: The village of Jupânești, there is a tradition in pottery , which is declining as an economic activity, but with a high potential. Făget is twinned with: Beech See text Beech ( Fagus ) is a genus of deciduous trees in the family Fagaceae , native to subtropical (accessory forest element) and temperate (as dominant element of mesophytic forests) Eurasia and North America . There are 14 accepted species in two distinct subgenera, Englerianae Denk & G.W.Grimm and Fagus . The subgenus Englerianae

7047-583: The world (according to Guinness World Records ) is the Meikleour Beech Hedge in Meikleour , Perth and Kinross , Scotland. Fagus sylvatica is one of the most common hardwood trees in north-central Europe, in France constituting alone about 15% of all nonconifers. The Balkans are also home to the lesser-known oriental beech ( F. orientalis ) and Crimean beech ( F. taurica ). As

7134-400: Was built by a woman named Tilen... It is a square-shaped building, beautiful and strong. To the west is a gate facing the plain. It has a dizdar , three hundred chosen soldiers and enough war material; it is entirely covered with shingles, but it has no market and bazaar or anything. It is just a serhat tower. Along with the military fortress, the civilian settlement also evolved, becoming in

7221-610: Was declared a town, with 10 villages subordinated to it. Ethnic composition (2011) Religious composition (2011) Făget had a population of 6,761 inhabitants at the 2011 census, down 6% from the 2002 census. Most inhabitants are Romanians (89.34%), larger minorities being represented by Hungarians (3.85%) and Ukrainians (2.09%). For 3.03% of the population, ethnicity is unknown. By religion, most inhabitants are Orthodox (72.71%), but there are also minorities of Pentecostals (13.28%), Roman Catholics (4.17%), Baptists (2.43%), Adventists (2.41%) and Reformed (1.52%). For 3.17% of

7308-513: Was designated for its beech woodlands, which are believed to be on the western edge of their natural range in this steep limestone gorge. Beech is not native to Ireland; however, it was widely planted in the 18th century and can become a problem shading out the native woodland understory. Beech is widely planted for hedging and in deciduous woodlands, and mature, regenerating stands occur throughout mainland Britain at elevations below about 650 m (2,100 ft). The tallest and longest hedge in

7395-420: Was first developed by Walter Guyton Cady in 1921. George Washington Pierce designed and patented quartz crystal oscillators in 1923. The quartz clock is a familiar device using the mineral. Warren Marrison created the first quartz oscillator clock based on the work of Cady and Pierce in 1927. The resonant frequency of a quartz crystal oscillator is changed by mechanically loading it, and this principle

7482-541: Was found near Itapore , Goiaz , Brazil; it measured approximately 6.1 m × 1.5 m × 1.5 m (20 ft × 5 ft × 5 ft) and weighed over 39,900 kg (88,000 lb). Quartz is extracted from open pit mines . Miners occasionally use explosives to expose deep pockets of quartz. More frequently, bulldozers and backhoes are used to remove soil and clay and expose quartz veins, which are then worked using hand tools. Care must be taken to avoid sudden temperature changes that may damage

7569-459: Was introduced by Neolithic tribes who planted the trees for their edible nuts. The beech is classified as a native in the south of England and as a non-native in the north where it is often removed from 'native' woods. Large areas of the Chilterns are covered with beech woods, which are habitat to the common bluebell and other flora. The Cwm Clydach National Nature Reserve in southeast Wales

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