Muscovite

Page 2

Photographed by Michael P. Klimetz

[Glassy Euhedral Crystal Plate in Pegmatite]

 Diamond Mica Mine

Keystone

Pennington County

SOUTH DAKOTA

Photographed by Michael P. Klimetz

[Glassy Euhedral Crystal Plate in Pegmatite]

 Diamond Mica Mine

Keystone

Pennington County

SOUTH DAKOTA

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