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Bornite
Type Locality
Jáchymov (St Joachimsthal), Jáchymov District (St Joachimsthal), Krušné Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic
Mineral Data
Cu
5
FeS
4
Strunz:
2.BA.15
Physical Properties
Crystal System:
Tetragonal
Hardness:
3.0
Tenacity:
brittle