Grossular

specimen number:
2062851

location:
Warren, Grafton Co., New Hampshire, USA

description:
A lustrous glassy slightly translucent cinnamon colored crystal of grossular in a cluster with several smaller crystals. Minor matrix present, in good condition. The specimen comes with a previous collection label from the A.E. Seaman Mineral Museum.

Warren, New Hampshire, situated in Grafton County, features a complex geological landscape dominated by rugged metamorphic and igneous formations associated with the Appalachian mountain building events, which historically supported localized mining operations for copper, zinc, and lead at sites like Ore Hill. The region has long attracted mineral collectors due to its diverse pegmatites and contact metamorphic zones. Within this geological framework, the mineral grossular—a member of the garnet group—forms in metamorphosed calcareous rocks and skarns through thermal and regional metamorphism, yielding prized crystal specimens that enrich New England's storied collecting heritage.

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