Mineral Information and Data:

Brewsterite-Sr
Sr(Si6Al2)O16 • 5H2O [CNMNC approved formula]

Named after David Brewster (1781-1868), Scottish physicist, who studied the optical properties of minerals and the element Strontium.

IMA status : Approved Species 1822 ()
CLASSIFICATION 
Dana
(8th edition) :
77.01.07.01  
  (77) Tectosilicate Zeolite group
  (77.01) true zeolites
  (77.01.07) Brewsterite and related species
  
Nickel-Strunz
(10th edition) :
09.GE.20
  (09) Silicates
  (09.G) Tektosilicates with Zeolitic H2O
  (09.GE) Chains of T10O20 Tetrahedra
  
Crystal system: Monoclinic System
Point group (H-M): 2/m — prismatic
  
  
  

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