| | Description | |
| Habit: | As incrustations and nodules (some with a coarse fibrous interior) | | Quality of samples: | not specified / average specimens | | Rarity at site: | Common | | Confirmation | |
| Validity: | Believed Valid | | References | |
| References: | Palache et al (1951), Dana's System of Mineralogy, seventh ed., vol. II: 399.; Dunning, G. S. & Cooper, J. F. (1993): History and minerals of The Geysers Sonoma County, California. Mineralogical Record 24 (5): 339-352 | | Associated minerals: | |
| Associates: | Boussingaultite
Tschermigite
| | Data | |
| Mineral Data: | Click here to view Mascagnite data | | Locality Data: | Click here to view The Geysers, Sonoma Co., California, USA |
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