Thumper Nos. 1-2-3 claims, Graham Co., Arizona, USA
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Mineralization is a fracture zone in maroon andesite porphyry, with a strike of N75W, and a vertical dip. Chrysocolla occurs in fractures.The fracture zone could not be traced on surface.
Workings include a shaft 15 X 8 feet at the collar and 31 feet deep. A select sample of chrysocolla in a small stockpile had assay concentrations of 3,345 ppm As, 7.70% Cu, and 117.4 ppm Ag, with low concentrations of other metals.
Mineral List
1 entry listed. 1 valid mineral.
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References
Brown, S.D. (1993) Mineral Appraisal of the Coronado National Forest, part 1, Pinaleno-Greasewood Mountains Unit, Graham County, Arizona: U.S. Bureau of Mines Open-File Report MLA 8-93, 76 pp.
Arizona Department of Mineral Resources Thumper 1, 2, 3 file.
USGS Willcox Quadrangle map.
USGS 7.5 minute Greasewood Min. Quadrangle map.
MRDS database Dep. ID #10161305, MAS ID #0040090338.
Arizona Department of Mineral Resources Thumper 1, 2, 3 file.
USGS Willcox Quadrangle map.
USGS 7.5 minute Greasewood Min. Quadrangle map.
MRDS database Dep. ID #10161305, MAS ID #0040090338.