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RM3099   Doubly terminated quartz with sphalerite

Huayllapon mine, Pasto Bueno, Pallasca, Ancash, Perú

Rich group of quartz crystals, translucent to hyaline, and with the terminal faces of the rhombohedron different from the usual ones. Among them, a very good size doubly terminated crystal stands out, well defined and with the faces of the prism with striations perpendicular to the main axis. They are disposed on a matrix with quartz and sphalerite crystals.

Size: 11.7 x 8 x 7.4 cm.
Main crystal: 10.9 x 1.5 cm.