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Galena and sphalerite Tri State District, Ottawa Co., Oklahoma, USA 8 x 4 cm. Main cube measures 3 cm on edge. This one shows an interesting and complex shape I cannot explain properly. Geometric patterns on faces. Tiny pyrite crystals as well. (Author: Antonio Alcaide)

Galena and sphalerite
Tri State District, Ottawa Co., Oklahoma, USA
8 x 4 cm.
Main cube measures 3 cm on edge. This one shows an interesting and complex shape I cannot explain properly. Geometric patterns on faces. Tiny pyrite crystals as well. (Author: Antonio Alcaide)

Dimensiones: 600 x 450
Tamaño fichero: 36.75 kbytes
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