Opal Butte is an old, once prominent, mine that was once owned by Tiffany & Co. Tiffany once owned more than a dozen gem mines, mostly in the western U.S. states and sold them all during the long Great Depression of the 1930's.
The opal at Opal Butte is found in hard rhyolite and jasper nodules and matrix characteristic of most American opal, making mining more costly and difficult. However, the opal at this mine is found in several beautiful colors.
Photo | Cut | Shape | Size (mm) |
Weight (ct) |
Price | ![]() |
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Faceted Cabochon Top |
Oval | 12 x 10 | 3.94 | $80 | |
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Faceted Cabochon Top |
Trillion | 12 | 4.63 | $95 |