Calcite is one of the most common minerals in the world and is mainly used in the pharmaceutical industry because of its high calcium content. Due to this composition, it is also said to have particularly good healing effects on the bones, which led to its German name "leg fracture stone". A special feature of calcite is its double refraction, which gave its name to its variety, double spar. Due to this special property, pure crystals are also used in the optical industry. Due to its low hardness, calcite is less suitable as a gemstone, but is occasionally cut in a cabochon or smooth cut. Due to its abundance, calcite occurs in a variety of colors and shapes. After the auction you will automatically receive an e-mail to the e-mail address stored on eBay to initiate the purchase process. I.
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