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Duhamelite, Cu4Pb2Bi(VO4)4(OH)3.8H2O, a new Arizona mineral

Published online by Cambridge University Press:  05 July 2018

S. A. Williams
S. A. Williams*
Affiliation:
Phelps Dodge Corp., Douglas, AZ 85607, USA
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Abstract

Found by J. E. DuHamel, at a prospect near Payson, Arizona, where it occurs with chrysocolla, malachite, rare fornacite, wulfenite, and bismutite. Colour chartreuse green (RHS 1A), H = 3, D = 5.80. Pleochroism in yellow weak; α = 2.08, β = 2.11. Crystals are minute orthorhombic fibres a = 7.49 Å, b = 9.66, c = 5.87, Z = 1, Dcalc 5.99 g/cm3. Strongest lines: 5.014(4), 4.828(3), 3.493(5), 3.159(7), 2.950(10), 2.642(9), 1.870(3), 1.755(3). Wet analysis (avg. of 3) gave CuO 20.4%, PbO 28.4, Bi2O3 15.9, V2O5 23.1, H2O 11.8.

Type
Research Article
Information
Mineralogical Magazine , Volume 44 , Issue 334 , June 1981 , pp. 151 - 152
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1981

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