Beryl (variety emerald), Pyrite, Calcite, Fluorapatite, Albite (variety cleavelandite) - Chivor mining district, Colombia - 148mm x 87mm x 80mm, xl=15mm
Mineral: Beryl (variety emerald), Pyrite, Calcite, Fluorapatite, Albite (variety cleavelandite)
Locality: Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
Dimensions: 148mm x 87mm x 80mm, xl=15mm

Description: I am totally clueless as what are these lustrous brown crystals next to the white albite