AM_Osumilite_4
Formula:
K.48 Fe1.58 Mg.66 Si10.2 Al4.56 O30
Name:
Osumilite
Unit cell:
10.071 10.071 14.303 90.0 90.0 120.0 , V=1256.33
Space group:
P6/MCC (192)
Armbruster T , Oberhansli R , American Mineralogist , 73 (1988) p.585-594, Crystal chemistry of double-ring silicates: Structural, chemical, and optical, variation in osumilites, Sample: Eifel-B93