| | Description | |
| Comments: | Abundant minor constituent in hydrothermally altered monzonite & quartz monzonite porphyries. | | Quality of samples: | not specified / average specimens | | Confirmation | |
| Validity: | Believed Valid | | References | |
| References: | Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 257; Schwartz, G.M. (1947), Hydrothermal alteration in the 'porphyry copper' deposits, Econ.Geol.: 42: 319-352; Creasey, S.C, (1959), Some phase relations in the hydrothermally altered rocks of porphyry copper deposits, Econ.Geol.: 54: 351-373; Schwartz, G.M. (1958), Alteration of biotite under mesothermal conditions, Econ.Geol.: 53: 164-177. | | Data | |
| Mineral Data: | Click here to view Illite data | | Locality Data: | Click here to view San Manuel orebody, San Manuel Mine (Apex Lead & Vanadium Mining Corp Mine; Quarelli group), San Manuel, San Manuel District, Pinal Co., Arizona, USA |
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