Amethyst geodes—some stretching 5 m long—dot the ancient lava flows of Uruguay’s Los Catalanes mining area. The geodes contain calcite, colorless quartz, and agate, another quartz mineral. Large ...
Amethyst is a violet variety of quartz which has been used as a gemstone for many centuries and is a key economic resource in northern Uruguay. Geodes are hollow rock formations often with quartz ...
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Finding and Cutting Agatized Coral Geodes - Found While SCUBA Diving in a Georgia River!
As someone who loves both fossils and gems/minerals; agatized coral hunting is REALLY growing on me. In this video I team up with PaleoCris and our friend Derek to go look for agatized coral geodes in ...
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