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

Mineral Species
Comments:"The refractive indices are: α =1.640 β and γ = 1.645, and suggest siderophyllite." (Hitchen, 1935)
Quality for species: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) A Moose Pocket, Blue Mountain, SSW of Blackberry Crossing, Albany, Carroll Co., New Hampshire, USA
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