Ludwigite

  
Mass of black ludwigite with minor sparkling grains of magnetite
Origin: near Dog Lake, Salt Lake Co., Utah, U.S.A.
Sample size: 6.3 x 4.6 x 5.3 cm
 
  
Origin: Mountain Lake Mine, Brighton, Park City District (Unita District), Wasatch Mts, Summit Co., Utah, U.S.A.
Ex. R.C. Erd collection
Sample size: 28 x 21 x 18 mm
 

Photo courtesy of: 

Dan Weinrich

Dealer in fine mineral specimens

 

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