| | Description | |
| Comments: | Occurs as a component of quartz-adularia-opal rock formed by alteration of granodiorite. | | Quality of samples: | not specified / average specimens | | Confirmation | |
| Validity: | Believed Valid | | References | |
| References: | Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 421; Williams, S.A. (1979), Girdite, oboyerite, fairbankite, and winstanleyite, four new tellurium minerals from Tombstone, AZ, Min.Mag.: 43: 453-457. | | Data | |
| Mineral Data: | Click here to view Quartz data | | Locality Data: | Click here to view Grand Central Mine, Contention-Grand Central Mine group, Tombstone District, Tombstone Hills, Cochise Co., Arizona, USA |
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