bijoux-et-mineraux: Turquoise psm after Bone (Odontolite) -…

bijoux-et-mineraux:

Turquoise psm after Bone (Odontolite) – Yarvicoya Mine, Oruro, Oruro Dept., Bolivia

Sometimes, in arid areas in/close to copper deposits, animals perish and their bones are changed by copper minerals from the water operating via the veins and cracks within the rocks over hundreds of years – a phenomenon recognized from a number of locations around the globe. Right here, on this case the alternative is by turquoise of carving grade! This uncommon pseudomorph of turquoise after bone (odontolite) reveals a lovely mild teal-blue colour. It’s apparently the jawbone of a mammal, in all probability dated round 20-forty,000 years previous.

Geology Nerd

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