The Borate Minerals are minerals which contain a borate anion group. The borate (BO 3 ) units may be polymerised similar to the SiO 4 unit of the silicate mineral class. This results in B 2 O 5 , B 3 O 6 , B 2 O 4 anions as well as more complex structures which include hydroxide or halogen anions. The [B(O,OH) 4 ] anion exists as well.
8-607: Borax Lake may refer to: Borax Lake (Oregon) , a lake fed by geothermal springs Borax Lake Site , a lake and archaeological site in Lake County, California Borax Lake (San Bernardino County, California) , a dry lake in San Bernardino County, California now known as Searles Lake [REDACTED] Topics referred to by the same term This disambiguation page lists articles about distinct geographical locations with
16-454: A year. Borate minerals Many borate minerals, such as borax , colemanite , and ulexite , are salts : soft, readily soluble, and found in evaporite contexts. However, some, such as boracite , are hard and resistant to weathering, more similar to the silicates . There are over 100 different borate minerals. Borate minerals include: IMA -CNMNC proposes a new hierarchical scheme (Mills et al., 2009). This list uses it to modify
24-638: Is a 10-acre (4.0 ha) alkaline lake in the Alvord Desert of southeastern Oregon in the United States. The lake is fed by geothermal springs 100 feet (30 m) below the surface that range in temperature from 104 to 300 °F (40 to 149 °C). Surface water temperatures usually range from 61 to 100 °F (16 to 38 °C) but occasionally go higher. The springs lie along the Steens fault zone, which runs north–south through
32-545: The Alvord Valley east of Steens Mountain . The lake contains high concentrations of borax (sodium borate), as well as arsenic and lead. Despite this, it is home to a unique species of fish, known as the Borax Lake chub . The species was formerly threatened by development of geothermal energy in the vicinity. However, in 1993 The Nature Conservancy bought 160 acres (65 ha) of private land, including
40-516: The lake in the 21st century. Interest in mining for boron and other substances in the Alvord Lake basin rose again in the 1940s and 1950s. A geologist who took samples from hot springs in and near Borax Lake (then also called Hot Lake ) reported in 1960 on the prospects for resumed commercial mining in the area. He estimated the total accumulation of borates from Borax Lake and another nearby hot springs at about 150 short tons (140 t)
48-544: The lake, in order to protect it; the U.S. Fish and Wildlife Service has designated 640 acres (260 ha) near the lake as critical habitat , and the Steens Mountain Cooperative Management and Protection Act of 2000 put the area around the lake off-limits to geothermal exploration and mining. The lake and nearby wetlands and water bodies such as Alvord Lake , north of the small community of Fields , provide important bird habitat. In
56-527: The late 19th century, a mining company called Rose Valley Borax bought the springs and the land around it. The borax salts emanating from the springs had collected on the surface and formed a low dome a 1 mile (1.6 km) across. The company mined the borax for about 10 years. Wagons pulled by mule teams delivered the borax to a railway terminal in Winnemucca, Nevada . Ruins of buildings associated with borax mining, which ended here in 1902, remain near
64-472: The same name. If an internal link led you here, you may wish to change the link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=Borax_Lake&oldid=1002971581 " Category : Place name disambiguation pages Hidden categories: Short description is different from Wikidata All article disambiguation pages All disambiguation pages Borax Lake (Oregon) Borax Lake
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