gsminmag Mineralogical Magazine Mineralogical Magazine 0026-461X Mineralogical Society 10.1180/minmag.1981.44.333.07 Choloalite, CuPb(TeO3)2·H2O, a New Mineral Williams S. A. Phelps Dodge Corp., Douglas, Arizona, USA 3 1981 44 333 55 57 28 7 1980 Copyright © 1981, The Mineralogical Society 1981 Abstract

Probably first found in Arabia, then Moctezuma, Sonora (the type locality), finally at Tombstone, Arizona. Crystals are cubic, invariably octahedral in habit, up to 2 mm in size. Colour forest green (RHS 136A), H = 3, D = 6.4.

Wet chemical analysis gave CuO 11.0%, PbO 33.0, TeO2 50.7, H2O 3.4; soluble in cold dilute acids. The strongest lines are 7.223(5), 4.170(2), 3.614(3), 3.472(4), 3.343(6), 3.036(10), 7.952(3), 2.454(5) Å. The cell indexes as cubic, a = 12.519 Å; for Z = 12, ρcalc = 6.41 g/cm3. May be anisotropic in thin section with birefringence up to 0.011; n = 2.04.