| | Journal (article/letter/editorial) | Massachusetts 02138 MAINE Minerals of the Topsham, Maine, Pegmatite District Topsham • Topsham, Maine's underappreciated...the Andros coggin River from Brunswick in Sagadahoc County. A mile-wide belt of granitic pegmatites runs...overlooking the Androscoggin River, north-northeast through the town of Topsham. The belt extends southward into...but only the pegmatites actually in the town of Topsham are covered in this review. There are thirty or...named quarries and numerous unnamed prospects in Topsham. The quarries, all inactive, are usually named | | | Report (volume) | GEOLOGY OF THE PEGMATITES AND ASSOCIATED ROCKS OF MAINE INCLUDING FELDSPAR, QUARTZ, MICA, AND GEM DEPOSITS................................... Origin of the Maine pegmatites........................................Larsen............................. Application to Maine pegmatites............................... Eutectics.............................. 1.... Androscoggin County.................................................................................... Maine Feldspar Company quarry and mill................... Turner feldspar |
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