Mannardite

  
Several prismatic crystals of black mannardite with metallic luster occur at one end of the specimen. The largest is about 6 mm long. Sulvanite (V, Cu, S) also present
Origin: Kechica River, British Columbia, Canada
Sample size: 3.4 x 4.5 cm
 

Photo courtesy of: 

John Veevaert, Trinity Mineral Co

Trinityminerals.com

 

  
Black prismatic crystals to about 0.75 mm
Origin: Rough claims, Sifton Pass, British Columbia, Canada (type locality)
Sample size: 3 x 2.5 x 2 cm
 

Photo courtesy of: 

Tom Loomis

Dakota Matrix Minerals

 

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