Augite
Bindi L, Safonov O G, Yapaskurt V O, Perchuk L L, Menchetti S
American Mineralogist 88 (2003) 464-468
Ultrapotassic clinopyroxene from the Kumdy-Kol microdiamond mine, Kokchetav
Complex, Kazakhstan: Occurrence, composition and crystal-chemical characterization
_database_code_amcsd 0002990
9.773 8.926 5.269 90 105.75 90 C2/c
atom      x      y      z  occ  Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Ca2       0 .30131 .25000  .61 .0110  .0124  .0105  .0064      0 -.0035      0
Fe2       0 .30131 .25000  .13 .0110  .0124  .0105  .0064      0 -.0035      0
Mg2       0 .30131 .25000  .04 .0110  .0124  .0105  .0064      0 -.0035      0
Mn2       0 .30131 .25000  .01 .0110  .0124  .0105  .0064      0 -.0035      0
K2        0 .30131 .25000  .17 .0110  .0124  .0105  .0064      0 -.0035      0
Na2       0 .30131 .25000  .05 .0110  .0124  .0105  .0064      0 -.0035      0
Al1       0 .90339 .25000  .61 .0086  .0095  .0091  .0067      0  .0016      0
Mg1       0 .90339 .25000  .39 .0086  .0095  .0091  .0067      0  .0016      0
SiT  .28752 .09211 .23187 .805 .0068  .0073  .0083  .0051 -.0020  .0022  .0006
AlT  .28752 .09211 .23187 .195 .0068  .0073  .0083  .0051 -.0020  .0022  .0006
O1    .1148  .0867  .1462      .0103  .0074  .0117  .0119  .0006  .0031  .0007
O2    .3614  .2496  .3201      .0118  .0137  .0117  .0119 -.0074  .0066  .0004
O3    .3490  .0191  .9871      .0118  .0115  .0145  .0091 -.0062  .0025 -.0061