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Chabazite-Na from
Portland Harbour Trust Quarry, Cape Sir William Grant, Portland, Glenelg Shire, Victoria, Australia

Locality type:Quarry
Formula:(Na2,K2,Ca,Sr,Mg)2[Al2Si4O12]2 · 12H2O
Comments:"Water-clear crystals of chabazite, up to 3 or 4 mm across occur sporadically in some cavities in the basalt, seated directly on the clay film, or where this is absent, on the andersine-augite-ilmenite crystals. The chabazite crystals are generally lenticular with a hexagonal outline, a form commonly given the variety term phacolite."
Validity:Believed Valid
References:W.D.Birch, N.Smith & J.Hately 1982. Andesine, Augite and Ilmenite in vesicles in an alkali olivine basalt from Portland, Victoria. The Australian Mineralogist No.37 March 1982 pp. 195-198 ;
W.D.Birch 1989. Zeolites of Victoria. The Mineralogical Society of Victoria, special publication No.2 1989 pp. 86-89
Associated Minerals Based on Photo Data:
Ilmenite1 photo of Chabazite-Na associated with Ilmenite at this locality.
Mineral Data:Click here to view Chabazite-Na data
Locality Data:Click here to view Portland Harbour Trust Quarry, Cape Sir William Grant, Portland, Glenelg Shire, Victoria, Australia
Mineral and/or Locality  
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