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Hyalophane
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| Hyalophane Formula: (Al1.41 Si2.59) (Ba.4 K.47 Na.13) O8 Name: Hyalophane Unit cell: 8.544 13.03 7.195 90.0 115.68 90.0 , V=721.89 Space group: C12/M1 (12) |
Viswanathan K , Kielhorn H M , American Mineralogist , 68 (1983) p.122-124, Al,Si distribution in a ternary (Ba,K,Na)-feldspar as determined by crystal, structure refinement, Celsian-rich
