AM_Chalcomenite Formula: Se Cu O5 H8 Name: Chalcomenite Unit cell: 6.674 9.161 7.398 90.0 90.0 90.0 , V=452.32 Space group: P212121 (19)

Robinson P D , Sen Gupta P K , Swihart G H , Houk L , American Mineralogist , 77 (1992) p.834-838, Crystal structure, H positions, and the Se lone pair of synthetic chalcomenite,, Cu(H2O)2[SeO3]