Mineral Information and Data:

Pinnoite
MgB2O(OH)6 [CNMNC approved formula]

Named for chief councilor of Mines, Pinno, of Halle, Germany.

IMA status : Valid species (Pre-IMA 1884) Grandfathered
CLASSIFICATION 
Dana
(8th edition) :
25.02.03.01  
  (25) Anhydrous Borates Containing Hydroxyl or Halogen
  (25.02)
  (25.02.03)
  
Nickel-Strunz
(10th edition) :
06.BB.05
  (06) Borates
  (06.B) Diborates
  (06.BB) Neso-diborates with double tetrahedra B2O(OH)6; 2(2T)
  
Crystal system: Tetragonal System
Point group (H-M): 4 — pyramidal
  
  
  
Other Properties: H2O Soluble.

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