Trepca complex, Trepca valley, Kosovska Mitrovica, District of Kosovska Mitrovica, Kosovo

12 x 9.7 x 7.5 cm
4.7 x 3.8 x 3 in

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Bladed crystals of Pyrrhotite and almost completely covered with Siderite and Sphalerite. The overall shape of the specimen is a portion of sphere the interior of which is composed primarily of Pyrrhotite and a small amount of Galena. The Siderite ranges in color from orange/brown to a light green/yellow/tan and formed small spherical aggregates which are the lighter color. The Sphalerite crystals are small, well formed, a dark gray color with a high metallic luster. There are a few Quartz crystals scattered around the back edges which are fairly transparent. There are also a few, small, twinned, white colored Calcite crystals also present.

Condition: Very Good to Excellent

Flaws: Nothing Appreciable

This mineral is also found in the following galleries: Minerals From Europe | Carbonates | Sulfides and Sulfosalts | Minerals Priced Between 100 and 199 Dollars