Mineral Information and Data:

Asisite
Pb7SiO8Cl2 [CNMNC approved formula]

Named from the root "Asis" which means "drinking place" in the local Nama language (Namibia) and is also the name of the farm on which the Kombat mine is located.

IMA status : Approved Species 1988 (IMA1987-003)
CLASSIFICATION 
Dana
(8th edition) :
10.02.07.01  
  (10) Oxyhalides and Hydroxyhalides
  (10.02) where A (O,OH) Xq
  (10.02.07)
  
Nickel-Strunz
(10th edition) :
03.DB.40
  (03) Halides
  (03.D) Oxyhalides, Hydroxyhalides and Related Double Halides
  (03.DB) With Pb, Cu, etc.
  
Crystal system: Tetragonal System
Point group (H-M): 4/mmm (or 4/m 2/m 2/m) — ditetragonal-dipyramidal
Unit cell: a = 3.897(2) Å, c = 22.81(2) Å
Crystal Habit: Platy, to about 0.5 mm.
  
Color: Yellow to yellow-green
Diaphaneity: Transparent
Luster: Adamantine
Measured Density: 8.041 (calculated) g/cm3
Cleavage: Perfect on {001}
Streak: Light yellow to white.
  
Geologic Setting: In manganese silicate lenses nearby a sulfide ore body.
Mineral Association: Hematophanite, barite, jacobsite, hematite, copper, molybdophyllite, chlorite
  

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