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This piece has a variety of minerals which make it a special specimen
It can be used as a thermal or electrical insulator
When you achieve this
Several localities worldwide have produced outstanding examples of Pyrrhotite in attractive crystals and aggregates
Tetrahedrite From Peru- Collectors Piece, Home Décor butterfly This piece has a varietyTetrahedrite From Peru Collectors Piece, Home Dcor Weight 70g Size 4. 5cm by 4cm Thickness 4cm Tetrahedrite is a copper antimony sulfosalt mineral. It is the antimony endmember of the continuous solid solution series with arsenic bearing tennantite. Pure endmembers of the series are seldom if ever seen in nature. Of the two, the antimony rich phase is more common. Other elements also substitute in the structure, most notably iron and zinc, along with