Ellingsenite Yakovenchuk V N, Ivanyuk G Y, Pakhomovsky Y A, Selivanova E A, Mikhailova J A, Krivovichev S V, Zolotarev A A, Zalkind O A The Canadian Mineralogist 49 (2011) 1165-1173 Ellingsenite, Na5Ca6Si18O38(OH)13*6H2O, a new martinite-related mineral species from phonolite of the Aris alkaline complex, Namibia Locality: Ariskop quarry, Aris alkaline complex, Namibia Note: This is reported as an incomplete structure _database_code_amcsd 0018739 CELL PARAMETERS: 9.5760 9.5770 16.4380 85.850 75.230 60.142 SPACE GROUP: P-1 X-RAY WAVELENGTH: 1.541838 Cell Volume: 1261.534 Density (g/cm3): 1.906 MAX. ABS. INTENSITY / VOLUME**2: 95.56519514 RIR: 16.323 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 5.57 100.00 15.8612 0 0 1 2 11.16 5.55 7.9306 0 0 2 2 21.49 1.02 4.1350 2 2 1 2 28.13 1.68 3.1722 0 0 5 2 30.18 1.48 2.9613 3 2 3 2 30.88 1.37 2.8953 -2 1 1 2 30.93 1.26 2.8913 -1 -3 2 2 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.