Monday, March 18, 2019
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molybdenum and lead mineral

Rock Science: Wulfenite, Molybdenite & Molybdenum

By Steve Voynick Of the 42 minerals that contain molybdenum as an essential element, most collectors are familiar only with wulfenite and molybdenite. Wulfenite (lead...
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...