Eagle Mine, Gilman district, Eagle Co., Colorado

10.1 x 5.5 x 3.2 cm

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Ex. A. Neely, 1960s

Tan colored, disc shaped Siderite crystals have grown on a matrix composed of black colored Sphalerite and minor Pyrite. The Sphalerite crystal have a very high, metallic luster.

Condition: Fairly Good

Flaws: A few of the Siderite crystals have slight damage. At both ends of the specimens, there are small sections where only massive material is present.

This mineral is also found in the following galleries: Minerals From the United States | Carbonates | Sulfides and Sulfosalts | Minerals Priced Between 25 and 49 Dollars