Omphacite Structure Data
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Omphacite
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INDEX
Omphacite_4
Formula:
Fe.082 Al.758 Mg.205 Ca.286 Na.602 Si2 O6
Name:
Omphacite
Unit cell:
9.501 8.654 5.238 90.0 107.23 90.0 , V=411.35
Space group:
C12/C1 (15)
McCormick T C , American Mineralogist , 71 (1986) p.1434-1440, Crystal-chemical aspects of nonstoichiometric pyroxenes, Sample: Vacancy model II
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