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What is Dolomite? A Field Guide
What is dolomite? With a chemical formula, CaMg(CO3)2, dolomite is a carbonate mineral that evokes images of picturesque Italian mountains and stunning geological formations....
What Is Calcite Vs. Dolomite?
What is calcite? This calcium carbonate is the most common of the carbonates. We admire its lovely crystal forms—all 600 of them. We also...
Calcite Crystals & Acid-Effervescence
Calcite crystals at rock shops and dealers at gem and mineral shows have recently been large volumes of inexpensive, massive calcite from Mexico. In...
Sapphire Mining: Discovery in Canada
Sapphire mining and discovery in Canada equals hard work and reward in 100-pound boulders containing sapphire crystals. I arrived soon after the discovery of...
Montana Sapphires: A Rockhound Guide
Montana sapphires today provide the inspiration and value that leads a whole new generation of folks to search for their own gems.
In over a...
