Mineralogy and Gemstone Related Sites of Interest
Australian Opal Mines USGS Ask a Geologist The OsoSoft Mineral Connection
The House of Tibara (Opals) Rockhound Information Everett Rock & Gem Club
Geology Adventures East King Co. Rock Club Marysville Rock Club
Bob's Rockshop Trinity Minerals Company Gems, Rocks and Minerals Delta Bravo
Wilensky Mineral Video Utah Mineral and Fossil Inc. Amethyst Galleries' Mineral Gallery
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