| | Description | |
| Comments: | As striated & twinned crystals to 8 inches (20 cm) diameter and as large crystal aggregates; often coated or enveloped by bornite and covellite. | | Habit: | Perfect, stubby octahedra 2 & 3 inches (5 & 7.5 cm) diameter. | | Quality of samples: | not specified / average specimens | | Confirmation | |
| Validity: | Believed Valid | | References | |
| References: | Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 341; Schrader & Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, AZ, USGS Bull. 582: 284; Probert, F.R. (1914), The Three R mine, Patagonia district, Ariz.: Min. and Sci. Press: 109(5): 176; Galbraith, F.W. (1947), Minerals of AZ, AZ Bur. of Mines Bull. 153: 23. | | Associated minerals: | |
| Associates: | Bornite
Covellite
| | Data | |
| Mineral Data: | Click here to view Pyrite data | | Locality Data: | Click here to view Three-R Mine (3R Mine), Three-R Mine group, Three-R Canyon, Palmetto District, Patagonia Mts, Santa Cruz Co., Arizona, USA |
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