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2. 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.

3. Opal - Wikipedia

   en.wikipedia.org/wiki/Opal

   A Peruvian opal (also called blue opal) is a semi-opaque to opaque blue-green stone found in Peru, which is often cut to include the matrix in the more opaque stones. It does not display a play of color. Blue opal also comes from Oregon and Idaho in the Owyhee region, as well as from Nevada around the Virgin Valley. [16] Opal is also formed by ...

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) New Hampshire [48] Beryl (1985) Granite (1985); New Hampshire's nickname is the Granite State: Smoky quartz (1985) New Jersey [49] Franklinite [50] New Mexico [51] Turquoise (1967) New York [52] Garnet (1969) North Carolina [53] Gold (2011 ...

7. Sheldon National Wildlife Refuge - Wikipedia

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

   The refuge contains the very active and popular Virgin Valley Opal Mining District whose mineral rights were grandfathered-in with the establishment of the sanctuary. [3] Rockhounds search for precious opal, agates, petrified wood, carnelian, obsidian, rhyolite, jasper, hyalite opal, and psilomelane, among other semiprecious gemstones.