Galkhaite, (Hg,Cu,Tl,Zn) (As,Sb)S2, from the Getchell mine, Humboldt County, Nevada

Theodore Botinelly; George J. Neuerburg; Nancy M. Conklin

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USGS · 70161868

Galkhaite, (Hg,Cu,Tl,Zn) (As,Sb)S2, from the Getchell mine, Humboldt County, Nevada

Theodore Botinelly·George J. Neuerburg·Nancy M. Conklin

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Abstract

The first reported occurrence in the United States of galkhaite (Hg,Cu,Tl,Zn)(As,Sb)S 2 is at the Getchell mine, Humboldt County, Nev. The mineral occurs as brownish-black cubes associated with graphite, pyrite, and realgar. In polished section galkhaite is grayish white and isotropic with a deep-red internal reflection; reflectivity at 590 nm is 21.6 percent. Spectrographic analysis gave Hg 42 percent, Cu 5 percent, Zn 1.5 percent, Fe 0.7 percent, Tl 5 percent, As 24 percent, Sb 0.3 percent, and S (by difference) 21.3 percent. The mineral is cubic, a=10.36, and the strong lines of the X-ray powder pattern are 2.99 (100), 4.21 (90), 2.76 (80), 1.831 (70), 7.25 (60), 2.58 (40), 1.561 (40). The pattern is very similar to that of tetrahedrite except for the strong lines at 7.25, 4.21, and 2.76.

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Journal of Research of the U.S. Geological Survey Article

Source-reported bounding extent: 40.92907766380371° to 41.380930388318° latitude; -117.52349853515625° to -117.10876464843749° longitude. This indicates report coverage, not an exact sampling location. View area on OpenStreetMap.

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Theodore Botinelly, George J. Neuerburg, Nancy M. Conklin. 1973. Galkhaite, (Hg,Cu,Tl,Zn) (As,Sb)S2, from the Getchell mine, Humboldt County, Nevada. https://pubs.usgs.gov/publication/70161868

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