Mineral Information and Data:

Bigcreekite
BaSi2O5 • 4H2O [CNMNC approved formula]

Named for the locality: Big Creek, Fresno County, California, USA.

IMA status : Approved Species 1999 ()
CLASSIFICATION 
Dana
(8th edition) :
66.02.01.02  (This Dana# Added)
  (66) Inosilicate Double-Width Unbranched Chains, W=2
  (66.02) with P=2 non-amphibole configuration
  (66.02.01) Plancheite Group
  
Nickel-Strunz
(10th edition) :
09.DF.30
  (09) Silicates
  (09.D) Inosilicates* Structural terminology per Liebau (1985)
  (09.DF) with 2-periodic multiple chains
  
Crystal system: Orthorhombic System
Point group (H-M): mmm (or 2/m 2/m 2/m) — dipyramidal
  
  
  

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