ncat ANK MSH128 Sphalerite, Albite, Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada

A sharp metallic black tetrahedral sphalerite crystal on white albite. Ex Noel and Ann Kennon Collection. Ex Jean Pierre Beckerich. Width of view 11.5mm. Stack of 109 images.

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