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Geological Age: 393-419 mya
Ancient sawfish survived several mass extinction events
using it symbolically for clear expression
forms the hinge
The feldspar forms blocky
Mercedes Calcite (Chalcopyrite on Calcite) - Specimen orthorhombic topaz Geological Age: 393-419 myaMined from: Daye Mine, Huangshi, Hubei Province, China Description: This one of a kind Mercedes Calcite specimen from Hubei Province, China features a tight cluster of large, transparent to smoky clear calcite crystals with broad, sharply defined faces and strong parallel growth lines. Dark brown to bronze mineral coatings form bold stripes and patches across several crystal faces, giving the piece a layered, banded appearance. The specimen shows a
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