Thursday, March 21, 2019
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Red Mountains of Colorado

On The Rocks: Colorado Mine Camp Lore

By Bob Jones While in Denver enjoying the excellent shows, I hope you have planned extra time so you can do some sightseeing in Colorado....
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...
Sharp Chalcopyrite crystals

Chalcocite Crystals of Bristol Copper Mines

Editor's Note: This is the first in a two-part series about the copper mines of Bristol, Connecticut. Story by Bob Jones Although many mineral collectors...