Ruby-in-Zoisite Carving and Rough Specimen Tanzania An ornamental stone found...

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Description

Ruby-in-Zoisite Carving and Rough Specimen
Tanzania
An ornamental stone found only in Tanzania the mineral naturally combines green and black zoisite, which has a hardness of 5.5-6.5 on the Mohs scale and corundum inclusions having a hardness of 9. Though often dull when in its rough form, when cut and polished...

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