AM_Synadelphite
Formula:
Mn9 As3 O22 H13
Name:
Synadelphite
Unit cell:
10.754 18.865 9.884 90.0 90.0 90.0 , V=2005.21
Space group:
PNMA (62)
Moore P B , American Mineralogist , 55 (1970) p.2023-2037, Crystal chemistry of the basic manganese arsenates: IV. Mixed arsenic valences, in the crystal structure of synadelphite