On this week's episode of Mineral Monday we learn about a mineral that comes in many different crystal formations. On display at The Keck Museum is one of the more rare formations of calcite shown ...

Rockhounders can find all kinds of gemstones across the United States, but there are certain places where geodes can be found ...

All that glitters ... might be rock. Collector Marc Weill (center), with adviser Dennis Tanjeloff (left) and partner Daniel Trinchillo, the "Indiana Jones" of the operation. Together, they've amassed ...

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