Spinel Lenaz D, Youbi N, Min A D, Boumehdi M A, Abbou M B American Mineralogist 99 (2014) 267-275 Low intra-crystalline closure temperatures of Cr-bearing spinels from the mantle xenoliths of the Middle AtlasNeogene-Quaternary Volcanic Field (Morocco):Mineralogical evidence of a cooler mantle beneath the West African Craton. Note:Sample MAR-BI16 Locality:Middle Atlas Neogene-Quaternary Volcanic Field of Morocco _database_code_amcsd 0020063 CELL PARAMETERS: 8.2021 8.2021 8.2021 90.000 90.000 90.000 SPACE GROUP: Fd3m X-RAY WAVELENGTH: 1.541838 Cell Volume: 551.792 Density (g/cm3): 4.121 MAX. ABS. INTENSITY / VOLUME**2: 36.05184336 RIR: 2.848 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 18.74 25.43 4.7355 1 1 1 8 30.83 30.25 2.8999 2 2 0 12 36.33 100.00 2.4730 3 1 1 24 38.00 1.39 2.3677 2 2 2 8 44.17 37.47 2.0505 4 0 0 6 54.83 8.84 1.6742 4 2 2 24 58.47 36.93 1.5785 5 1 1 24 58.47 3.93 1.5785 3 3 3 8 64.24 55.92 1.4499 4 4 0 12 67.57 2.61 1.3864 5 3 1 48 72.95 2.86 1.2969 6 2 0 24 76.10 9.67 1.2508 5 3 3 24 77.14 2.73 1.2365 6 2 2 24 81.26 4.66 1.1839 4 4 4 8 84.32 1.94 1.1485 5 5 1 24 89.39 4.62 1.0961 6 4 2 48 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.