Sphalerite - Blue Goose Mine, USA - 8.3 x 12.3 cm

Mineral: Sphalerite
Locality: Blue Goose Mine, Commerce, Tri-State District, Ottawa County, Oklahoma, USA
Dimensions: 8.3 x 12.3 cm

Description: Reddish “ruby jack” sphalerite crystals to 1.0 cm covering the top of a dark gray chert matrix.