Minerals / Sphalerite, Driggeth, Cumbria.

Sphalerite, zinc sulfide,( Zn,Fe)S   from the Driggeth mine in Cumbria, is the most common ore of zinc This specimen has a number of crystals with a very untidy   tetrahedral habit. Also on the specimen,   are dozens of minute pyrite cubes,which can only be seen under high magnification.  

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