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Aegirine-augite
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| Aegirine-augite Formula: (Ca.774 Na.226) Mg.901 Fe.11 Si2 O6 Name: Aegirine-augite Unit cell: 9.689 8.824 5.28 90.0 107.6 90.0 , V=430.29 Space group: C12/C1 (15) |
Bertolo S , Nimis P , Dal Negro A , American Mineralogist , 79 (1994) p.668-674, Low-Ca augite from experimental alkali basalt at 18 kbar: Structural variation, near the miscibility gap, Atomic parameters from ICSD
