Topsham, Sagadahoc County, Maine, USA

Deep green emerald has been reported in the Devonian miarolitic pegmatites of the Topsham area, 30 km north-east of Portland, Maine. Jewelry stones, such as blue topaz, aquamarine and chrysoberyl, were recovered as by-products.

Ref: E.Ya. Kievlenko ( 2003) Geology of gems, p. 79

Gemstone List

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