Purpurite from Massachusetts, USA
USA | |
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| Billings, M. P. and Wolfe, C. W. (1944): Spodumene Deposits in the Leominster-Sterling Area (USGS Open-File Report 45-88 |
USA | |
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| Billings, M. P. and Wolfe, C. W. (1944): Spodumene Deposits in the Leominster-Sterling Area (USGS Open-File Report 45-88 |
Pine Hill, Fitchburg, Worcester County, Massachusetts, USA