AM_Schorl_2 Formula: Ca.031 Na.608 K.03 Al6.576 Fe1.764 Ti.081 Li.021 Mn.015 Mg.528 Si6 B3 O30.645 F.355 H3.2 Name: Schorl Unit cell: 15.963 15.963 7.154 90.0 90.0 120.0 , V=1578.73 Space group: R3M (160)

Bloodaxe E S , Hughes J M , Dyar M D , Grew E S , Guidotti C V , American Mineralogist , 84 (1999) p.922-928, Linking structure and chemistry in the schorl-dravite series, Sample DLux1