Technische Universität Berlin Mineralogical Collections Dr.Susanne Herting-Agthe, Sekr. BH 1, Ernst-Reuter-Platz 1 D-10587 Berlin, tel ++49 (0)30 - 314 22254, fax 314 21124

		Pyrargyrite
	back start         mail contact	Photo:Monika Günther Pyrargyrite  Ag3SbS3   ditrigonal - pyramidal, 3m Crystals with hexagonal prism II {10-10}, steep and flat ditrigonal pyramids; on native arsenic. St. Andreasberg, Harz mountains, Germany. Height of the big crystal: 11 mm. Inv.No.56/387.   Pyrargyrite crystal drawings: combination of:   {11-20} hexagonal prism II., broad {01-10} trigonal prism I., narrow {21-31} ditrigonal pyramid, above, negative {12-3-1} ditrigonal pyramid, below, positive (analogeu face of the latter) {11-23} hexagonal pyramid II., above {11-2-3} hexagonal pyramid II., below (analogue face of the latter, smaller)    left: single crystal, standard setting right: view from above

last version: 2004-08-18