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Mascagnite from
The Geysers, West Mayacmas Mining District, Sonoma Co., California, USA

Classification
Species:Mascagnite
Formula:(NH4)2SO4
Comments:Occurs as incrustations and nodules during early summer months in the upper part of Geyser Creek Canyon.
Habit:As incrustations and nodules (some with a coarse fibrous interior)
Abundance at site:Common
Confirmation
Validity:Believed Valid
References
References:Palache et al (1951), Dana's System of Mineralogy, seventh ed., vol. II: 399; Vonsen, Magnus (1941) Preliminary report on minerals of The Geysers of Sonoma County, California. Mineralogist: 9: 246, 279; Vonsen, Magnus (1946), Minerals at “The Geysers,” Sonoma County, California: California Division Mines Report 42: 288; Smith, Robert Leland (1958), Some new occurrences of sassolite in the United States: American Mineralogist: 43: 1205; Dunning, Gail E. and J.F. Cooper (1969a) Letovicite from The Geysers, Sonoma County, California. California Division Mines and Geology Mineral Information Service: 22: 135; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 239; 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
Letovicite
Sassolite
Tschermigite
Data
Mineral Data:Click here to view Mascagnite data
Locality Data:Click here to view The Geysers, West Mayacmas Mining District, Sonoma Co., California, USA
Photo GalleryView Gallery (2 photos)
Localities for Mascagnite in this Region
Geyser Canyon (Geyser Creek Canyon), The Geysers, West Mayacmas Mining District, Sonoma Co., California, USA
Nearest other occurrences of Mascagnite
0.3km (0.2 miles) Geyser Canyon (Geyser Creek Canyon), The Geysers, West Mayacmas Mining District, Sonoma Co., California, USA
 
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