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  2. Opal - Wikipedia

    en.wikipedia.org/wiki/Opal

    Multicolored rough opal specimen from Virgin Valley, Nevada, US. The Virgin Valley [40] opal fields of Humboldt County in northern Nevada produce a wide variety of precious black, crystal, white, fire, and lemon opal. The black fire opal is the official gemstone of Nevada. Most of the precious opal is partial wood replacement.

  3. Virgin Valley - Wikipedia

    en.wikipedia.org/wiki/Virgin_Valley

    This article is mostly about the Southern valley, which is Northeast of Las Vegas along I-15. The Northern valley is on the opposite end of the State near the Oregon border. The two valleys are approximately 600 miles apart. The Opal mines are located in the Northern valley. [1] The Virgin Valley has mines that are rich in opals.

  4. Flora Haines Loughead - Wikipedia

    en.wikipedia.org/wiki/Flora_Haines_Loughead

    Nevada's Virgin Valley is a source for precious black opal gemstones and replacing woods. Her next career started in 1915 when she was sent to investigate the discovery of opals in Virgin Valley, Nevada, 400 miles (640 km) from San Francisco.

  5. World's most expensive opal literally glows in the dark - AOL

    www.aol.com/news/2015-08-13-world-s-most...

    Meet the "Virgin Rainbow" – perhaps the finest and certainly the most expensive opal on record. It literally glows in the dark. In fact, as it gets darker around the opal, the opal appears ...

  6. List of U.S. state minerals, rocks, stones and gemstones

    en.wikipedia.org/wiki/List_of_U.S._state...

    Precious Gemstone: Virgin Valley black fire opal (1987) Semiprecious Gemstone: Nevada turquoise (1987) ... Precious Metal: Silver (2007) Oligocene petrified palmwood ...

  7. Sheldon National Wildlife Refuge - Wikipedia

    en.wikipedia.org/wiki/Sheldon_National_Wildlife...

    Rockhounds search for precious opal, agates, petrified wood, carnelian, obsidian, rhyolite, jasper, hyalite opal, and psilomelane, among other semiprecious gemstones. The Virgin Valley Mining District is known for black opals , the Nevada State Gemstone, still very active with multiple fee-dig mines.

  8. Gold just saw its biggest yearly gain since 2010 — here's why ...

    www.aol.com/finance/gold-just-saw-biggest-yearly...

    Wall Street analysts expect gold's rally to keep going in 2025 after the precious metal saw its biggest annual jump in 14 years. On Thursday, gold futures jumped more than 1% to hover above $2,670 ...

  9. Nevada State Route 140 - Wikipedia

    en.wikipedia.org/wiki/Nevada_State_Route_140

    The valley has been known for its black fire-opals, and some mining operations in the area will allow civilians to hunt for the precious stones for a fee. [3] Near this valley, SR 140 enters the Sheldon National Wildlife Refuge, an area designed to provide habitat for pronghorn and conserve native fish, bird and plant species. [4]

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