AM_Zimbabweite
Formula:
(Ta3 Nb.5 Ti.5) Pb K.5 Na1.5 As4 O18
Name:
Zimbabweite
Unit cell:
12.245 15.287 8.684 90.0 90.0 90.0 , V=1625.55
Space group:
CCMB (64)
Duesler E N , Chakoumakos B C , Foord E E , American Mineralogist , 73 (1988) p.1186-1190, Zimbabweite, Na(Pb,Na,K)2As4(Ta,Nb,Ti)4O18, an arsenite-tantalate with a, novel corner-linked octahedral sheet