AM_Nacrite
Formula:
Al2 Si2 O9 H4
Name:
Nacrite
Unit cell:
8.906 5.146 15.664 90.0 113.58 90.0 , V=657.94
Space group:
C1C1 (9)
Zheng H , Bailey S W , Clays and Clay Minerals , 42 (1994) p.46-52, Refinement of the nacrite structure, Locality: Red Mountain near Silverton, Colorado, USA