Pyrolusite Crystals in Compact Mass
Collection
John Betts - Fine Minerals
Description
Heavy specimen of black Pyrolusite crystals in compact mass. Old label attached says, Fine Paperweight Needle Ore, Manganese Anvil, McBomber Mine, Marquette County, L.S., Mich., G.A. Wettstein's. Collected pre-1900.
Locality
McComber Mine (Lucy Mine), Negaunee, Marquette County, Michigan
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