New Mineral Names*
American Mineralogist, Volume 94, pages 399–408, 2009 New Mineral Names* GLENN POIRIER,1 T. SCOTT ERCIT ,1 KIMBERLY T. TAIT ,2 PAULA C. PIILONEN ,1,† AND RALPH ROWE 1 1Mineral Sciences Division, Canadian Museum of Nature, P.O. Box 3443, Station D, Ottawa, Ontario K1P 6P4, Canada 2Department of Natural History, Royal Ontario Museum, 100 Queen’s Park, Toronto, Ontario M5S 2C6, Canada ALLORIITE * epidote, magnetite, hematite, chalcopyrite, bornite, and cobaltite. R.K. Rastsvetaeva, A.G. Ivanova, N.V. Chukanov, and I.A. Chloro-potassichastingsite is semi-transparent dark green with a Verin (2007) Crystal structure of alloriite. Dokl. Akad. Nauk, greenish-gray streak and vitreous luster. The mineral is brittle with 415(2), 242–246 (in Russian); Dokl. Earth Sci., 415, 815–819 perfect {110} cleavage and stepped fracture. H = 5, mean VHN20 2 3 (in English). = 839 kg/mm , Dobs = 3.52(1), Dcalc = 3.53 g/cm . Biaxial (–) and strongly pleochroic with α = 1.728(2) (pale orange-yellow), β = Single-crystal X-ray structure refinement of alloriite, a member 1.749(5) (dark blue-green), γ = 1.751(2) (dark green-blue), 2V = of the cancrinite-sodalite group from the Sabatino volcanic complex, 15(5)°, positive sign of elongation, optic-axis dispersion r > v, Latium, Italy, gives a = 12.892(3), c = 21.340(5) Å, space group orientation Y = b, Z ^ c = 11°. Analysis by electron microprobe, wet chemistry (Fe2+:Fe3+) P31c, Raniso = 0.052 [3040 F > 6σ(F), MoKα], empirical formula and the Penfield method (H2O) gave: Na2O 1.07, K2O 3.04, Na18.4K6Ca4.8[(Si6.6Al5.4)4O96][SO4]4.8Cl0.8(CO3)x(H2O)y, crystal- CaO 10.72, MgO 2.91, MnO 0.40, FeO 23.48, Fe2O3 7.80, chemical formula {Si26Al22O96}{(Na3.54Ca0.46) [(H2O)3.54(OH)0.46]} + Al2O3 11.13, SiO2 35.62, TiO2 0.43, F 0.14, Cl 4.68, H2O 0.54, {(Na16.85K6Ca1.15)[(SO4)4(SO3,CO3)2]}{Ca4[(OH)1.6Cl0.4]} (Z = 1).
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