18EB74: Group of divergent crystals with the hexagonal outline of Pyrrhotite, totally pseudomorphed by Pyrite, with a second generation
of smaller brighter crystals, and a multitude of scattered small cream-colored crystals of Dolomite. A cascade of very sharp Sphalerite crystals (marmatite variety), with very well defined spinel-law twin planes, intense black and very lustrous, completes the piece, along with small traces of Pyrite with a markedly golden color. The old Herja mine, where this piece comes from, processed metals such as antimony, lead, silver and zinc.

Herja Mine, Chiuzbaia, Baia Sprie, Maramures  Romania (1964)

Specimen size: 7.5 × 4.7 × 4.0 cm = 2.95” × 1.85” × 1.57”