Manganite

  
Origin: Cambria-Jackson Mine (Bessemer; Hartford; Lillie; Cambria; Jackson; Lakeside; South Jackson), Negaunee, Marquette iron range, Marquette Co., Michigan, U.S.A.
Ex. Scott Williams collection
Sample size: 2.4 x 1.6 x 3.7 cm
 

Photo courtesy of: 

Dan Weinrich

Dealer in fine mineral specimens

 

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