Mineral description : Benleonardite

Mineral class Sulphides : Argentite group
Chemical formula Ag8(Sb,As)Te2S3
Crystal system Tetragonal.
Habitus  
Cleavage  
Hardness 3.5
Density 7.79
Color Gray or black.
Streak  
Luster Metallic, opaque.
Description  
Occurance  
Associates  
Notes Type locality : Moctezuma mine, La Bambolla, Moctezuma, Sonora, Mexico.
Approved by IMA in 1985.
Locations A rare mineral
  • Långdalsgruvan, Boliden, Västerbotten, Sweden.

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Last changed : 2000-06-10