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Siderophyllite from
Rollstone Hill Quarry, Fitchburg, Worcester Co., Massachusetts, USA

Comments:"The refractive indices are: α =1.640 β and γ = 1.645, and suggest siderophyllite." (Hitchen, 1935)
Quality of samples:not specified / average specimens
References:Hitchen, 1935: Am Min 20(1):1-24
Mineral Data:Click here to view Siderophyllite data
Locality Data:Click here to view Rollstone Hill Quarry, Fitchburg, Worcester Co., Massachusetts, USA
Nearest other occurrences of Siderophyllite
165.1km (102.6 miles) Moose Pocket, Blue Mountain, SSW of Blackberry Crossing, Albany, Carroll Co., New Hampshire, USA
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