Mineral Information and Data:

Jerrygibbsite
Mn2+9(SiO4)4(OH)2 [CNMNC approved formula]

Named for Gerald V. Gibbs (1929-), Virginia Polytechnic Institute, Blacksburg, Virginia, USA.

IMA status : Approved Species 1984 ()
CLASSIFICATION 
Dana
(8th edition) :
52.03.02d.02  
  (52) Nesosilicate Insular SiO4 Groups and O, OH, F, and H2O
  (52.03) with cations in [6] coordination only
  (52.03.02d) Humite group (Clinohumite series)
  
Nickel-Strunz
(10th edition) :
09.AF.70
  (09) Silicates
  (09.A) Nesosilicates (Isolated tetrahedron) structures
  (09.AF) Nesosilicates with additional anions; cations in [4], [5] and/or only [6] coordination
  
Crystal system: Orthorhombic System
Point group (H-M): mm2 — pyramidal
  
  
  

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