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Kona Dolomite

A unique stone found only at our Marquette County quarry, its pink and red coloring is due to iron found in the rock.  Highly prized by collectors and jewelers, pieces from our quarry can be found displayed at the Smithsonian, the Geological Society Foundation of America Headquarters, and a 3 ton piece that was donated in 1987 as Michigan’s contribution to the Fountain of Freedom Monument in Philadelphia to commemorate the 200th anniversary of the signing of the Constitution.