polyhedral pyrite crystals have grown up on calcite

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Calcite crystals in the typical formation of Klammstein

Mineral: Bergkristall

Staubdicht und Spritzwassergeschützt

Lapislazuli Rohstein, Ladjuar Madan, Afghanistan, 9,6 kg Koralm polyhedral pyrite crystals have grownDetails: Name: lapis lazuli Location: Ladjuar Madan, Badakshan Province, Afghanistan Size: 22 x 11 x 11 cm Weight: 9. 6 kg Grinding tip: Coarse grinding with diamond galvanized diamond grinding discs K80, 180 wet Plastic bound K280,600,1200,3000(8000), Type: AMPolishing: Diamond paste K14,000 dry on felt, leather or cotton denim You can also find the grinding tools described here on www. steinschleifmaschinen. at.