AM_Lithidionite
Formula: K Na Cu Si4 O10
Name: Lithidionite
Unit cell: 9.8 8.01 6.97 114.1 99.5 105.6 , V=456.93
Space group: P-1 (2)

Pozas J M M , Rossi G , Tazzoli V , American Mineralogist , 60 (1975) p.471-474, Re-examination and crystal structure analysis of litidionite