Stilpnomelane

  
Origin: Långban, Sweden
Harry von Eckermann Collection
Sample size: 4. x 4.5 x 1.6 cm
 

Photo courtesy of: 

John Veevaert, Trinity Mineral Co

Trinityminerals.com

 

  
  
Iron ore rich matrix, this mostly covered by greenish-brown sparkling micro stilpnomelane crystals. Minor dolomite in association.
Origin: Sterling Mine, Antwerp, Jefferson Co., New York, U.S.A.
Ex. Don Belsher collection, ex Colorado School of Mines specimen
Sample size: 4.8 x 3.3 x 4.1 cm
 
  
Origin: near Longvale, Mendocino Co., California, U.S.A.
Sample size: 4.5 x 3 x 4.3 x 3 x 1.5 cm
 

Photo courtesy of: 

Dan Weinrich

Dealer in fine mineral specimens

 

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