Ca(Cu,Zn)4(SO4)2(OH)6.3H2O
Orthorhombic
Orthoserpierite, a calcium copper sulfate hydroxide hydrate mineral, was verified from Sterling Hill by the writer using X-ray and chemical methods; it is unknown from Franklin.
A second occurrence was described in more detail by Jenkins (1992) from the 1060 pillar, 430 level, at coordinates 1060N, 1210W, in the Sterling Mine. Orthoserpierite from this occurrence was verified by X-ray diffraction and energy-dispersive microprobe analyses. It occurs as bright blue-green, rectangular, prismatic crystals, commonly bent or kinked, and 0.5 to 1.0 mm in cross-section, associated with aurichalcite and friedelite (Jenkins, 1992).
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| Copyright © 1995 by Pete J. Dunn |
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