As8S9 Alacránite Crystal Data: Monoclinic. Point Group: 2/m. Crystals are pinacoidal, prismatic, and...analyses; corresponding to As0.88S1.00. (2) Kateřina mine, Czech Republic; average of 3 electron microprobe...Occurrence: In hydrothermal As-S veins (Alacrán mine, Chile); in the condensation zone of a hydrothermal...New Guinea); as sublimates on a burning mine dump (Kateřina mine, Czech Republic). Association: Realgar...sphalerite, acanthite, barite, quartz, calcite (Alacrán mine, Chile); realgar, orpiment, uzonite, stibnite, cinnabar |