Mineral Information and Data:

Schallerite
Mn2+16As3+3Si12O36(OH)17 [CNMNC approved formula]

Named for Wakdemar Theodore Shaller ((1852-1967), mineralogist, U. S. Geological Survey.

IMA status : Valid species (Pre-IMA 1925) Grandfathered
CLASSIFICATION 
Dana
(8th edition) :
72.04.01a.03  
  (72) Phyllosilicate Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings
  (72.04) with 4-, 6-, and 12-membered rings
  (72.04.01a) Pyrosmalite group (Pyrosmalite subgroup)
  
Nickel-Strunz
(10th edition) :
09.EE.15
  (09) Silicates
  (09.E) Phyllosilicates
  (09.EE) Single tetrahedral nets of 6-membered rings connected by octahedral nets or octahedral bands
  
Crystal system: Trigonal System
Point group (H-M): 3m — ditrigonal-pyramidal
  
  
  

<<< BACK TO MINERAL SEARCH