Rough Blue Calcite Minerals For Tumbling

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20 blue calcite mineral specimens perfect for your rock tumbler. 

Calcite is a carbonate mineral that is often milky white or clear. In these geode formations, the calcite crystals are a sparkly white on the inside while the outside is brown, blue or orange in color. according to metaphysics, Blue calcite can help you to speak more clearly, and feel less shy, especially if you often get put on the spot or struggle to find the words to articulate your ideas and emotions. A must have for your next big speech or presentation.

Once tumbled, they will reveal a stunning shade of blue that's hard to take your eyes off of.