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Ungarettiite
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| Ungarettiite Formula: O24 Si8 Mn4.72 Mg.28 Na2.798 Ca.03 K.152 Name: Ungarettiite Unit cell: 9.889 18.033 5.296 90.0 105.08 90.0 , V=911.90 Space group: C12/M1 (12) |
Hawthorne F C , Oberti R , Cannillo E , Sardone N , Zanetti A , Grice J D , Ashley P M , American Mineralogist , 80 (1995) p.165-172, A new anhydrous amphibole from the Hoskins mine, Grenfell, New South Wales,, Australia: Description and crystal structure of ungarettiite,, NaNa2(Mn2Mn3)Si8O22O2, Sample U1
