![Natural resources / Penroseite / Gersdorffite / Clausthalite / Chalcopyrite / Colquechaca / Sulfide minerals / Selenide minerals / Chemistry Natural resources / Penroseite / Gersdorffite / Clausthalite / Chalcopyrite / Colquechaca / Sulfide minerals / Selenide minerals / Chemistry](https://www.pdfsearch.io/img/49089d555386e3bed3c59dd15b14b7e6.jpg)
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City Philadelphia / Washington / D.C. / Nose / Cambridge / Devon / Colquechaca / London / Potos´ı / / Company Ni Co / Mineral Data Publishing / Dana / / Country Congo / Germany / United States / United Kingdom / Bolivia / Finland / / Facility National Museum of Natural History / Pacajake mine / Natural History Museum / Harvard University / / NaturalFeature Harz Mountains / / Organization Harvard University / / Person Richard Alexander Fullerton Penrose / Jr. / / Position economic geologist / / ProvinceOrState Pennsylvania / Katanga Province / Shaba Province / Massachusetts / / PublishedMedium Natural History / / Region northeastern Finland / / Technology X-ray / /
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