Opal Butte
Morrow County, Oregon, USA
Opal Butte is a mountain in Oregon famed for producing specimens of Opal – hence the name!
The site produces a range of opal including common, precious and Opal-AN (hyalite).
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The best source of information on this locale is the 1988 article by Kevin Lane Smith, linked below from the GIA website.
I have not been able to find much more up to date information – including whether or not the West Coast Mining company is still operating.
Further reading
If you are interested in other classic American locales we may have stock from the following locales.
American locales
Arkansas California Colorado
- Green River Formation (spanning areas of Colorado, Utah, and Wyoming.)
- Stoneham, Weld County, Colorado, USA
- Hat lease, Goldfield Mining District, Esmeralda County, Nevada, USA
- Virgin Valley, Humboldt County, Nevada, USA
- Cedar Hill Quarry, Lancaster County, Pennsylvania, USA
- Pottsville Formation, St. Clair, Schuylkill County, Pennsylvania, USA
- Iron Mountain, Pinto Iron Mining District, Iron Springs Mining District, Iron County, Utah, USA
- Topaz Mountain, Thomas Range, Juab County, Utah, USA
For the rest of our American stock, see below.