AM_Cuspidine
Formula:
(Ca2.01 Na1.99) P2 F2 O7
Name:
Cuspidine
Unit cell:
10.873 10.5516 7.4287 90.0 109.74 90.0 , V=802.19
Space group:
P121/N1 (14)
Piotrowski A , Kahlenberg V , Fischer R X , American Mineralogist , 85 (2000) p.1534-1539, Na2Ca2(P2O7)F2, the first diphosphate of the cuspidine family, Sample: single position O1