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Pyrite in cuboctahedrons and tetrahedrons with calcite on ankerite. Old specimen from Kamsdorf in Thuringia. Picture width: 8 cm. (Author: Andreas Gerstenberg)

Pyrite in cuboctahedrons and tetrahedrons with calcite on ankerite. Old specimen from Kamsdorf in Thuringia. Picture width: 8 cm. (Author: Andreas Gerstenberg)

Dimensions: 600 x 450
File size: 45.2 kbytes
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