| | Description | |
| Comments: | As red coatings in cracks in siliceous sinter restricted to the area known as "the Big Geysers" | | Quality of samples: | not specified / average specimens | | Confirmation | |
| Validity: | Believed Valid | | References | |
| References: | American Mineralogist (1970), 55:2103-2104; Dunning, G. S. & Cooper, J. F. (1993): History and minerals of The Geysers Sonoma County, California. Mineralogical Record 24 (5): 339-352 | | Data | |
| Mineral Data: | Click here to view Metastibnite data | | Locality Data: | Click here to view The Geysers, Sonoma Co., California, USA |
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