Omphacite Structure Data

Omphacite Structure Data

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Omphacite

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Omphacite_2
Formula: (Fe.069 Al.931) Ca.229 Na.77 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: Full-occupancy model


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