Calcite - Sweetwater Mine, USA - 3.0 x 7.0 x 7.5 cm.
Mineral: Calcite
Locality: Sweetwater Mine, Ellington, Viburnum Trend District, Reynolds County, Missouri, USA
Dimensions: 3.0 x 7.0 x 7.5 cm.

Description: Doubly terminated translucent gray calcite scalenohedron with a dark gray phantom associated with brassy chalcopyrite crystals.