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Quartz covered in chlorite balls

The Hemlock Claims: Sources Rich in History and Unique Specimens

by Stuart “Tate” Wilson Deep in the Cascade Mountains of Washington state and up the Middle Fork Snoqualmie River reside the richest crystallized mineral deposits...

Examining Pyrite, Iron and Flint: The Fire Makers

By Steve Voynick, Rock Science column One of the oldest and best preserved human mummies ever found is that of Ötzi, a man who lived...

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