Chondrodite Friedrich A, Lager G A, Ulmer P, Kunz M, Marshall W G American Mineralogist 87 (2002) 931-939 High-pressure single-crystal X-ray and powder neutron study of F,OH/OD-chondrodite: Compressibility, structure, and hydrogen bonding Sample: P = 0.0001 GPa, X-ray _database_code_amcsd 0002860 4.7328 10.2765 7.8760 109.081 90 90 P2_1/b atom x y z occ Uiso MgM1 1/2 0 1/2 .90 .009 FeM1 1/2 0 1/2 .10 .009 MgM2 .0115 .1731 .3076 .008 MgM3 .4922 .8868 .0783 .010 Si .0773 .1432 .7051 .0085 O1 .782 -.001 .295 .013 O2 .727 .243 .125 .011 O3 .223 .165 .532 .013 O4 .266 .852 .296 .013 OH5 .261 .056 .100 .42 .014 F5 .261 .056 .100 .58 .014