Nevada Opal: Part II, The Rest of the State |
Nevada has produced some spectacular opal: This is Part II covering the rest of the state excluding the Virgin Valley deposits......
Nevada is famous for its beautiful, colorful Opal. The state contains a number of rich precious opal beds in a variety of geologic settings. Many of these produce spectacular and extremely valuable specimens, but have not received the publicity of the more famous Virgin Valley opal beds in northwest Humboldt County. This is part II on Nevada opals, covering the opal deposits of the rest of the state. Locations for common opal are too numerous to mention, but precious opal - stones displaying a play of color - are less common and can be listed as follows: (the opal deposits from Virgin Valley, by far the best known deposits in the state, are described on a separate webpage: Virgin Valley Opal) |
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Little Joe / Duffy deposit, Humboldt County: Located off the Soldier Meadows Road about 40 miles north of Gerlach in western Humboldt County along the eastern front of the Calico Hills is a deposit of precious opal. Historically, local residents had been picking up precious opal from this area for many years, but it was not until 1960 that Ray Duffield staked the Little Joe claims covering the deposit. The opal occurs here as nodular masses filling vesicles in basalt. A portion of the vesicles are filled with clear yellow orange and red opal that commonly has purple blue green red and yellow fire, although red and green predominate. Opal with a milky white background occurs with both precious and common varieties. Many of the basalt nodules also contain agate and common opal. Unfortunately, like the Virgin Valley Opal, the Calico Hills Opal also has a high tendency to desiccate and crack. The Duffield claims are now patented, private property and not open to the public. The deposit is well known however, because for many years this deposit was operated as a pay to dig site. About 6 miles north of the Little Joe claims in the Calico Hills, another deposit of precious opal occurs in basalt at Willow Creek within a similar geologic setting. This site is still being operated as a pay to dig site with campground. |
THIS PAGE IS STILL UNDER CONSTRUCTION - PHOTOS TO COME.... |
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Gabbs |
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Webber Claims, Lincoln County
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THIS PAGE IS STILL UNDER CONSTRUCTION - PHOTOS TO COME.... |
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Firestone, Humboldt County |
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Velvet Pass, Pershing County |
THIS PAGE IS STILL UNDER CONSTRUCTION - PHOTOS TO COME.... |
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Opal is a widespread low temperature and secondary mineral which is confined to near surface deposits. Common opal generally shapes from white to Brown and is often found with petrified wood and sometimes with at the tops of hydrothermal vein systems. Common opal occurs at a large number of locations in Nevada and is sometimes collected for gem use. Mercury (cinnabar) laced common opal is mined many of the old pits of the McDermitt Mercury mine in some of the other old Mercury mines in Nevada. | ||
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Want to know a little bit more about this crazy prospector guy? Well, here's a little bit more about me, and how I got into prospecting: Chris' Prospecting Story Interested in seeing some natural gold? Here are some interesting photos of beautiful Gold Nuggets