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Oxygen and Our Mineral World

Story by Bob Jones Currently, scientists agree there are about 5,000 identified minerals on Earth. The most common characteristic of these minerals is that the...
erythrite

Arsenic Family Minerals: Part II — Erythrite, Realgar, Orpiment and Scorodite

Editor's Note: This is the second of a two-part series. Enjoy Part I >>> Story by Bob Jones There’s a large number of minerals whose chemistry...

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