AM_Parwelite Formula: (Mn4.08 Mg.92) Sb As Si O12 Name: Parwelite Unit cell: 10.048 19.418 9.735 90.0 95.83 90.0 , V=1889.59 Space group: A12/A1 (15)

Marsh R E , Schomaker V , Inorganic Chemistry , 18 (1979) p.2331-2336, Some incorrect space groups in Inorganic Chemistry, Volume 16, Locality: Langban, Sweden