lab9 - GY 302: Crystallography and Mineralogy Lab 9:...

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GY 302: Crystallography and Mineralogy Lab 9: Classes VI and VII: Sulfates, Chromates, Molybdates, Tungstates, Phosphates, Vanadates, Arsenates Drawer 8 Your task today : This is the list of minerals that you will be responsible for the next lab quiz. Next Tuesday (1:00-1:20 PM): Mineral lab quiz 4 (Classes VI and VII). Mineral Formula System Specimen Quality Class VI: Sulfates, Chromates, Molybdates, Tungstates Alunite KAl 3 (SO 4 ) 2 (OH) 6 Hexagonal (Trig) g, g *Anglesite PbSO 4 Orthorhombic p,p,f,f,g,g Anhydrite CaSO 4 Orthorhombic g(x3) Barite BaSO 4 Orthorhombic g(x11) *Brochantite CuSO 4 (OH) 6 Monoclinic f, g, g Celestite/Celestine SrSO 4 Orthorhombic g, g, g Crocoite PbCrO 4 Monoclinic g *Ferrimolybdite Fe(MoO 4 ) 3 ·8H 2 O Orthorhombic f(x3), g Glauberite Na 2 Ca(SO 4 ) 2 Monoclinic f,f, g,g,g Gypsum CaSO 4 ·2H 2 O Monoclinic g(x7) *Langbeinite K 2 Mg 2 (SO 4 ) 3 Isometric f, f Polyhalite K 2 Ca 2 Mg(SO 4 ) 4 ·2(H 2 O) Triclinic g(x5) Scheelite CaWO 4 Tetragonal
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