One word pinned here

Carroll County

Name: Carroll County
Address: US

39.5700°N -77.0200°W · Q501323

One English word in this atlas traces back to Carroll County. It sits in United States.

All of United States

Pinned here

carrollitenoun · 1852

Well attested

A Maryland county gave its name to the mineral that now comes almost entirely from the Congolese copperbelt.

William Leonard Faber published On Carrollite, a new Cobalt Mineral in the American Journal of Science in 1852, describing material from the Patapsco mine in Carroll County, Maryland. The Maryland workings are long closed. Today the best carrollite crystals in the world come from the Katanga copper and cobalt mines, thousands of kilometers from the county on the label.

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