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Day mine Calcite

Calcite — Twins and Other Oddities

By Bob Jones Is there a mineral collection lacking at least one spectacular calcite? I doubt it. After all, this lovely calcium carbonate is found...
Fluorite Ojuela Mine

De Colores: Ojuela Mine, Durango

Editor's Note: This is one of 10 Mexican locales recognized for mineral production. View the rest of the list as part of an article...

#3: Rock & Gem Top 10

The count down continues with our recap of the Top 10 Photos published in Rock & Gem in the last year. This specimen of colorless...

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