AM_Ferrobustamite Formula: (Ca.822 Fe.178) Si O3 Name: Ferrobustamite Unit cell: 7.862 7.253 13.967 89.44 95.28 103.29 , V=771.77 Space group: A-1 (2)

Yamanaka T , Sadanaga R , Takeuchi Y , American Mineralogist , 62 (1977) p.1216-1224, Structural variation in the ferrobustamite solid solution, Wo82Fs18, Note: the sample is from the Ofuku mine, Yamaguchi Prefecture, Japan