Mineral: Quartz
Locality: Peñas Blancas Mine, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia
Dimensions: 26mm x 94mm x 18mm

Description: Quartz crystal looking like a very sharp arrowhead. The cross section presents only four faces practically all along. The backside is translucent, the only smooth and the widest face.

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