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The Opal mines are located in the Northern valley. [1] The Virgin Valley has mines that are rich in opals. The opals were discovered in about 1913. [2] The richest mines were owned by Flora Haines Loughead who had been a writer and a farmer but bought a string of claims after being sent to do a story for the San Francisco Chronicle. [3]
John Loughead. . (m. 1886) . ; Mr. Guttierez. Flora Haines Loughead (later, Flora Gutierrez; 1855–1943) was an American writer, farmer, and miner from Wisconsin. She became the "Opal Queen" of Virgin Valley. [1] Flora's son Allan was the founder of American aerospace company the Lockheed Corporation.
Opal is a hydrated amorphous form of silica (SiO 2 · n H 2 O); its water content may range from 3% to 21% by weight, but is usually between 6% and 10%. Due to its amorphous property, it is classified as a mineraloid, unlike crystalline forms of silica, which are considered minerals. It is deposited at a relatively low temperature and may occur ...
17. Rainbow Ridge Opal Mine. Nevada. The Virgin Valley in Nevada is famous for its opal mines, and Rainbow Ridge is one of the best options. Treasure hunters can choose from either tailings ...
El Dorado Canyon (Nevada) El Dorado Canyon is a canyon in southern Clark County, Nevada famed for its rich silver and gold mines. The canyon was named in 1857 by steamboat entrepreneur Captain George Alonzo Johnson when gold and silver was discovered here. [2][3] It drains into the Colorado River at the former site of Nelson's Landing.
La Negra is a silver mine in Querétaro, Mexico. [1] The mine has thirteen known ore bodies, overwhelmingly of silver, but also with smaller quantities of gold, zinc and lead. [2] The mine has a processing mill that can process 3,000 tons-per-day. [3] Tailings from the mine are held behind five tailings dams. [1]
The Thacker Pass lithium mine is a lithium clay mining development project in Humboldt County, Nevada, which is the largest known lithium deposit in the US and one of the largest in the world. [5][6][7] There has been significant exploration of Thacker Pass since 2007. The Bureau of Land Management issued a Record of Decision approving ...
The Black Rock Desert is a semi-arid region (in the Great Basin shrub steppe ecoregion) of lava beds and playa, or alkali flats, situated in the Black Rock Desert–High Rock Canyon Emigrant Trails National Conservation Area, a silt playa 100 miles (160 km) north of Reno, Nevada, that encompasses more than 300,000 acres (120,000 ha) of land and contains more than 120 miles (200 km) of historic ...