Picher Field, Tri-State District, Ottawa Co., Oklahoma

17.8 x 10.7 x 8.2 cm
7 x 4.2 x 3.2 in

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circa 1960

The surface of this specimen is covered with Sphalerite specimens in a variety of habits and sizes. Of particular note are the smaller Rubyjack crystals which have a good red color and glossy luster. The larger crystals are black in color and the habit is different. There are also well formed, cubic Galena crystals present. The matrix is a light gray colored Chert which on the surface has formed a fine druze of micro Quartz crystals.

Condition: Good

Flaws: There are a few small areas, near the edges of the specimens, where small Sphalerite crystals are broken which produces a lighter, orange color.

This mineral is also found in the following galleries: Minerals From the United States | Sulfides and Sulfosalts | Quartz | Minerals Priced Between 50 and 99 Dollars