Unnamed copper prospect (23), Pinaleño Mts, Aravaipa District, Graham Co., Arizona, USA
An underground Cu occurrence/prospect with a shaft.
Mineralization is chalcopyrite disseminated in quartz veinlets, malachite stains on a contact between granite and a mafic dike. No evidence of continuity of minerals at surface.
Workings include an 11 foot deep shaft on the contact.
ReferencesBrown, 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.
USGS Stockton Pass Quadrangle map.
MRDS database Dep. ID #10137768, MAS ID #0040090312.
| Chalcopyrite|| Malachite|
2 entries listed. 2 valid minerals.
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Locality Updated: Ciapa Liscia, Piacenza Province, Emilia-Romagna, ItalyFrom Bruno Marello, 10th Dec 2013 10:45:58