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Creaseyite, Cu2Pb2(Fe,Al)2Si5O17-6H2O a new mineral from Arizona and Sonora

Published online by Cambridge University Press:  05 July 2018

Sidney A. Williams
Affiliation:
Phelps Dodge Corporation, Douglas, Arizona
Richard A. Bideaux
Affiliation:
Computing Associates, Tucson, Arizona

Summary

Creaseyite was first noted in specimens from Tiger, Arizona, and was then found at Wickenburg, Arizona, and Caborca, Sonora, prior to description. It is an oxide zone mineral occurring with wulfenite, willemite, mimetite, chrysocolla, wickenburgite, and ajoite. The composition is [Cu2Pb2(Fe,Al)2Si5O17-6HaO]. Colour Agathia green (R.H.S. 142B) with pale streak, H = 2½, Dmeas = 4.1, calc. 4.01. Crystals are orthorhombic with a 12.483, b 21.395, c 7.283. Z = 4.2Vγ 69° meas; α 1.737, β 1.747, γ 1.768.

Type
Research Article
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1975

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References

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