Description
Calcite – Blue Tumbled Stones
Blue Calcite has a trigonal cystal system and is in the mineral class of carbonate. It is formed from solutions containing calcium through sedimentation. Its blue coloring comes from minute quantities of Barite impurities that have seeped into the mix while the crystals have formed.
While Calcite itself can be a very common find, especially in the US, generally the wonderful blue shades are found in Mexico and South America.
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