Odontolite
Yarvicoya mine, Yarvicoya, Tapacari Province, Cochabamba, Bolivia
4.2 x 3.0 x 2.1 cm. Occasionally, in arid areas in/near copper deposits, animals perish and their bones are replaced by copper minerals from the water running through the veins and cracks in the rocks - a phenomenon known from a few places around the world. Here, in this case the replacement is by turquoise of carving grade. This rare pseudomorph ...
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