molybdophyllite

  
This specimen is comprised of hausmannite impregnated calcite with micaceous molybdophyllite found in several areas. Molydophyllite is a very rare mineral that looks a lot like muscovite.
Origin: Långban, Sweden
Harry von Eckermann Collection
Sample size: 8.2 x 5.3 x 4.2 cm
 

Photo courtesy of: 

John Veevaert, Trinity Mineral Co

Trinityminerals.com

 

  
White, foliated or micaceous, thin platy crystals to 0.75 mm with hausmannite.
Origin: Langban mine, Varmland, Sweden (type locality)
Ex. Grenier collection
Sample size: 3 x 2 x 2 cm
 

Photo courtesy of: 

Tom Loomis

Dakota Matrix Minerals

 

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