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      2nd class - Sulfides - The minerals in this class are compounds of metals with S, Se, Te, As, Sb, Bi, i.e. together with similar selenides, tellurides, arsenides, antimonides, bismuthides. They are classified into divisions according to the amounts of metals and nonmetals in minerals, and their metal/sulfur ratio.

chalkopyrit a pyrit

No. of sample:	g4633
Mineral:	chalkopyrit, HOR
Description:	jeden kus
Localization:	St.Ransko, Zn, důl U obrázku
Author:	leg.Bernard
Comment:

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