Mineral Information and Data:

Jennite
Ca9Si6O16(OH)10 • 6H2O [CNMNC approved formula]

Named for Clarence Marvin Jenni (1896-1973), American mineral collector and director of the Geological Museum, University of Missouri.

IMA status : Approved Species 1966 ()
CLASSIFICATION 
Dana
(8th edition) :
56.02.04.11  
  (56) Sorosilicate Si2O7 Groups and O, OH, F. and H2O
  (56.02) with cations in [4] and/or >[4] coordination
  (56.02.04) Cuspidine - Wohlerite group
  
Nickel-Strunz
(10th edition) :
09.DG.20
  (09) Silicates
  (09.D) Inosilicates* Structural terminology per Liebau (1985)
  (09.DG) with 3-periodic single and multiple chains
  
Crystal system: Triclinic System
Point group (H-M): 1 — pinacoidal
  
  
  

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