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Esseneite
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| Esseneite Formula: Fe.61 Al1.34 Ca.97 Si1.08 O6 Name: Esseneite Unit cell: 9.79 8.822 5.37 90.0 105.81 90.0 , V=446.25 Space group: C12/C1 (15) |
Cosca M A , Peacor D R , American Mineralogist , 72 (1987) p.148-156, Chemistry and structure of esseneite (CaFeAlSiO6), a new pyroxene, produced by pyrometamorphism
