Mineral Information and Data:

Baileychlore
Zn6Si4O10(OH)8 [CNMNC approved formula]

Named for Professor Sturges W. Bailey (1919-1994), Department of Geology and Geophysics, University of Wisconsin, Madison, Wisconsin, USA.

IMA status : Approved Species 1988 (IMA1986-056)
CLASSIFICATION 
Dana
(8th edition) :
71.04.01.06  
  (71) Phyllosilicate Sheets of Six-Membered Rings
  (71.04) interlayered 1:1, 2:1, and octahedra
  (71.04.01) Chlorite group (Tri-Dioctahedral)
  
Nickel-Strunz
(10th edition) :
09.EC.55
  (09) Silicates
  (09.E) Phyllosilicates
  (09.EC) Phyllosilicates with mica sheets, composed of tetrahedral and octahedral nets
  
Crystal system: Triclinic System
Point group (H-M): 1 — pinacoidal
Unit cell: a = 5.34Å, b = 9.25Å, c = 14.4Å; β = 97.12°
Crystal Habit: As fine-grained transverse fibers of very small size.
  
Color: Green, zoned.
Diaphaneity: Transparent
Hardness (Mohs): < 5
Measured Density: 3.18(2) g/cm3
Cleavage: Perfect micaceous
  
Geologic Setting: As rims on colloform calcite veins, within a strongly oxidized collapse karst-breccia containing skarn clasts.
Mineral Association: Andesine, garnet, vesuvianite, zincian chamosite, goethite, hematite, chalcocite, copper, malachite, calcite
  

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