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American Mineralogist Crystal Structure Database

1 matching records for this search.

Orthoclase
Download hom/orthoclase.pdf 
Viswanathan K, Kielhorn H M
American Mineralogist 68 (1983) 122-124
Al,Si distribution in a ternary (Ba,K,Na)-feldspar as determined
by crystal structure refinement
Note: variety hyalophane
Locality: Yugoslavia
_database_code_amcsd 0019651
8.544 13.030 7.195 90 115.68 90 C2/m
atom     x     y     z  occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Al1  .0089 .1835 .2242 .437 0.0039 0.0011 0.0029 -.0004 0.0024 -.0002
Si1  .0089 .1835 .2242 .563 0.0039 0.0011 0.0029 -.0004 0.0024 -.0002
Al2  .7050 .1179 .3454 .268 0.0035 0.0008 0.0036 -.0001 0.0021 0.0000
Si2  .7050 .1179 .3454 .732 0.0035 0.0008 0.0036 -.0001 0.0021 0.0000
Ba   .2828     0 .1331 .400 0.0048 0.0024 0.0084      0 0.0027      0
K    .2828     0 .1331 .470 0.0048 0.0024 0.0084      0 0.0027      0
Na   .2828     0 .1331 .130 0.0048 0.0024 0.0084      0 0.0027      0
Oa1      0 .1428     0      0.0078 0.0017 0.0064      0 0.0048      0
Oa2  .6264     0 .2867      0.0061 0.0008 0.0088      0 0.0022      0
Ob   .8273 .1415 .2274      0.0069 0.0026 0.0091 -.0007 0.0053 0.0002
Oc   .0303 .3104 .2558      0.0064 0.0015 0.0088 -.0005 0.0041 -.0004
Od   .1842 .1261 .4030      0.0039 0.0011 0.0029 -.0004 0.0024 -.0002


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