![Crystallography / Porphyry copper deposit / Pyrite / Argillic alteration / Molybdenite / Gold mining in Alaska / Admiralty mining district / Economic geology / Chemistry / Matter Crystallography / Porphyry copper deposit / Pyrite / Argillic alteration / Molybdenite / Gold mining in Alaska / Admiralty mining district / Economic geology / Chemistry / Matter](https://www.pdfsearch.io/img/cac155433cc2edd486efc9b0cbf57a98.jpg) Date: 2012-07-25 12:40:09Crystallography Porphyry copper deposit Pyrite Argillic alteration Molybdenite Gold mining in Alaska Admiralty mining district Economic geology Chemistry Matter | | Alaska Resource Data File Chignik quadrangle Descriptions of the mineral occurrences shown on the accompanying figure follow. See U.S. Geological Survey[removed]for a description of the information content of each field Add to Reading ListSource URL: ardf.wr.usgs.govDownload Document from Source Website File Size: 196,89 KBShare Document on Facebook
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