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-TF28 Locality:Middle Atlas Neogene-Quaternary Volcanic Field of Morocco _database_code_amcsd 0020069 CELL PARAMETERS: 8.1499 8.1499 8.1499 90.000 90.000 90.000 SPACE GROUP: Fd3m X-RAY WAVELENGTH: 1.541838 Cell Volume: 541.324 Density (g/cm3): 3.910 MAX. ABS. INTENSITY / VOLUME**2: 28.62224918 RIR: 2.384 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 18.86 21.25 4.7053 1 1 1 8 31.04 34.77 2.8814 2 2 0 12 36.57 100.00 2.4573 3 1 1 24 44.47 38.84 2.0375 4 0 0 6 55.21 9.91 1.6636 4 2 2 24 58.88 3.63 1.5684 3 3 3 8 58.88 38.35 1.5684 5 1 1 24 64.70 58.92 1.4407 4 4 0 12 68.06 2.05 1.3776 5 3 1 48 73.49 3.14 1.2886 6 2 0 24 76.67 9.57 1.2428 5 3 3 24 77.73 1.72 1.2286 6 2 2 24 81.89 4.60 1.1763 4 4 4 8 84.99 1.82 1.1412 5 5 1 24 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.