Alunogen from
The Geysers, West Mayacmas District, Mayacmas Mts (Mayacamas Mts), Sonoma Co., California, USA

Description
Habit:	Fine fibrous silky tufts & thick incrustation
Quality of samples:	not specified / average specimens
Rarity at site:	Very common
Confirmation
Validity:	Believed Valid
References
References:	Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 539; Allen, Eugene T. & Arthur L. Day (1927), Steam wells and other thermal activity at “The Geysers,” California: Carnegie Institute Washington Publication 378: 45; Vonsen, Magnus (1941) Preliminary report on minerals of The Geysers of Sonoma County, California. Mineralogist: 9: 246; Vonsen, Magnus (1946), Minerals at “The Geysers,” Sonoma County, California: California Division Mines Report 42: 290; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 263; Mineralogica Record (1993): 24(5): 349.
Data
Mineral Data:	Click here to view Alunogen data
Locality Data:	Click here to view The Geysers, West Mayacmas District, Mayacmas Mts (Mayacamas Mts), Sonoma Co., California, USA

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Current server date and time: 15th Feb 2012 23:09:05