AM_Cyanochroite
Formula: K2 Cu S2 O14 H12
Name: Cyanochroite
Unit cell: 9.0851 12.1302 6.1674 90.0 104.45 90.0 , V=658.17
Space group: P121/A1 (14)

Bosi F , Belardi G , Ballirano P , American Mineralogist , 94 (2009) p.74-82, Structural features in Tutton s salts K2[M2+(H2O)6](SO4)2,, with M2+= Mg, Fe, Co, Ni, Cu, and Zn, Locality: synthetic