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Smith Granite quarry, Westerly, Washington Co., Rhode Island, USA
Granite quarry opened in 1846. Besides granite (quartz monzonite), there is biotite gneiss with dikes and lenses of pegmatite.Mineral List
| Allanite-(Ce) Beryl 'Biotite' Calcite 'Chabazite' | 'Columbite' Epidote Fluorapatite Fluorite Microcline | Molybdenite Monazite-(Ce) Muscovite Quartz var: Smoky Quartz | Rutile 'Stilbite' |
17 entries listed. 12 valid minerals.
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References
Dale, T. N. (1908). The Chief Commercial Granites of Massachusetts, New Hampshire, and Rhode Island (USGS Bulletin 354.)
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