Armenite Structure Data

Armenite Structure Data
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Armenite

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Armenite
Formula: Ba Ca2 Al6 Si9 O32 H2
Name: Armenite
Unit cell: 13.874 18.66 10.697 90.0 90.0 90.0 , V=2769.33
Space group: PNNA (52)

Armbruster T , Czank M , American Mineralogist , 77 (1992) p.422-430, H2O ordering and superstructures in armenite, BaCa2Al6Si9O30.2H2O: A, single-crystal X-ray and TEM study, sample from Remigny, Quebec, Canada

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