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Aragonite, (v. Tarnowitzite, w. Smithsonite)


Chemistry: CaCO3
Size: 60 mm
Owner: Jim Robison
Photographer: Crystal Classics

Intergrown trillings of aragonite (var. tarnowitzite; to 16 mm), on a botryoidal mass of yellowish-brown smithsonite.

The tarnowitzite crystals have translucent, milky cores, grading to transparent and colourless at the edges.