Clinohumite and Chromite in Calcite Tumblestone

Clinohumite and Chromite in Calcite Tumblestone (image 1/[null])
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Clinohumite and Chromite in Calcite Tumblestone This fantastic and very unusual tumblestone has two minerals held within Calcite, Clinohumite (the brown inclusions) - a rare silicate mineral with a hardness of 6 and a monoclinic crystal structure, and Chromite (the black inclusions) - an iron chromium oxide with a harness of 5.5 and an isometric crystal system.The result is a wonderful and striking stone, measures approx. 2.3 cms. Check out my other items ! Be sure to add me to your favourites list ! Please remember if you are making multiple purchases to request an invoice before you pay so I can reduce the postage/shipping costs for you.
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