Garnets in the Salmon River

Article from November 2020 Wayne County Gem  and Mineral Club Newsletter

While Linda Schmidtgall liked the garnets weathering from a schist roadcut in Tolland, I believe I have had more fun playing with the garnet-bearing sand recovered from below the Comstock Covered Bridge in East Hampton, CT.   Both make great sand samples and both sourced their garnets from the Devonian Littleton schist, a mica- and garnet-rich metamorphic rock formed during the Acadian orogeny (mountain-building event) ~375-325 million years ago.  The Acadian event was the third of four orogenies along eastern North America that collectively created the Appalachian Mountains and surrounding terrains.

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