|AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Mexico > Sphalerite and Pyrite pseudomorphs after Calcite
|Sphalerite and Pyrite pseudomorphs after Calcite
|Naica District, Saucillo, Chihuahua, Mexico
|Large sphalerite pseudomorphs after curved calcite crystals up to 5 cm long. The outer surface is coated with yellow metallic pyrite microcrystals. The black sphalerite is visible on the bottom. Note the curve in the largest pseudomorph.
|For reference only
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