Mineral Information and Data:

Aikinite
CuPbBiS3 [CNMNC approved formula]

Named for Dr. Arthur Aikin (1773-1854), a founder and long-time Secretary of the Geological Society of London, England.

IMA status : Valid species (Pre-IMA 1843) Grandfathered
CLASSIFICATION 
Dana
(8th edition) :
03.04.05.01  
  (03) Sulfides - Sulfosalts
  (03.04) where z/y > 3 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals
  (03.04.05) Aikinite Group (Orthorhombic containing Pb, Cu, Bi, & S)
  
Nickel-Strunz
(10th edition) :
02.HB.05a
  (02) Sulfides
  (02.H) Sulfosalts of SnS Archetype
  (02.HB) With Cu, Ag, Fe, Sn and Pb
  
Crystal system: Orthorhombic System
Point group (H-M): mmm (or 2/m 2/m 2/m) — dipyramidal
Unit cell: a = 11.638 Å, b = 4.039 Å, c = 11.319 Å
Crystal Habit: Crystals prismatic to acicular, striated parallel to elongation
  
Color: Blackish gray; tarnishes brown or copper-red
Diaphaneity: Opaque
Luster: Metallic
Hardness (Mohs): 2 - 2.5
Measured Density: 7.07 g/cm3
Cleavage: 1; {010} indistinct
Tenacity: Brittle
Fracture: Uneven
Streak: Grayish black
  
Geologic Setting: Uncommon in hydrothermal veins.
Mineral Association: Gold, pyrite, galena, tennantite, bismuthinite, enargite, chalcopyrite, quartz
  

 

Aikinite
3 mm wide vein of metallic aikinite through quartz
Origin: Cumongo Springs, Esmeralda Co., Nevada, United States
Sample size: 2 x 1.5 x 1 cm
Photo: Tom Loomis

 

Aikinite
Aikinite on quartz
Origin: Outlaw mine, Nye Co., Nevada, United States
Sample size: 2.5 x 2 cm
Photo: Tom Loomis

 

Aikinite
(zoom-in of above)

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