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Indialite |
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Balassone G, Franco E, Mattia C A, Puliti R |
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American Mineralogist 89 (2004) 1-6 |
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Indialite in xenolithic rocks from Somma-Vesuvius volcano (Southern Italy): |
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Crystal chemistry and petrogenetic features |
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9.775 9.775 9.354 90 90 120 P6/mcc |
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atom x y z occ Biso B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) |
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Al1 .5 .5 .25 .917 1.10 .00409 .00409 .0032 .0024 0 0 |
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Si1 .5 .5 .25 .083 1.10 .00409 .00409 .0032 .0024 0 0 |
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Al2 .3734 .2665 0 .250 1.33 .0056 .0041 .0040 .00295 0 0 |
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Si2 .3734 .2665 0 .750 1.33 .0056 .0041 .0040 .00295 0 0 |
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Mg 1/3 2/3 .25 .970 1.40 .0047 .0047 .0043 .00235 0 0 |
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Fe 1/3 2/3 .25 .030 1.40 .0047 .0047 .0043 .00235 0 0 |
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O1 .4851 .3494 .1444 1.60 .0063 .0052 .0048 .00325 -.00025 .0001 |
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O2 .2306 .3081 0 2.47 .0108 .0095 .0070 .00735 0 0 |
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K 0 0 .162 .168 9 .020 .020 .05 .010 0 0 |
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Ca 0 0 .162 .042 9 .020 .020 .05 .010 0 0 |
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Indialite |
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Schwartz K B, Leong D B, McConville R L |
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Physics and Chemistry of Minerals 20 (1994) 563-574 |
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Structural chemistry of synthetic cordierite: evidence for solid solutions |
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and disordered compositional domains in Bi-flux-grown Mg-cordierites |
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Sample: Crystallized from glass at 1050 degrees C for 18 hours |
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Note: tetrahedral site occupancies are assumed, not refined |
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9.7815 9.7815 9.3537 90 90 120 P6/mcc |
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atom x y z occ Biso |
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MgM 1/3 2/3 .25 -.14 |
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AlT1 .5 .5 .25 2/3 .09 |
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SiT1 .5 .5 .25 1/3 .09 |
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AlT2 .3766 .2671 0 1/3 .23 |
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SiT2 .3766 .2671 0 2/3 .23 |
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O1 .4885 .3489 .1426 -.28 |
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O2 .2300 .3093 0 1.0 |
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| Download AMC data (View Text File)
Download CIF data (View Text File)
Download diffraction data (View Text File)
View JMOL 3-D Structure
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|
Indialite |
|
Schwartz K B, Leong D B, McConville R L |
| |
Physics and Chemistry of Minerals 20 (1994) 563-574 |
|
Structural chemistry of synthetic cordierite: evidence for solid solutions |
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and disordered compositional domains in Bi-flux-grown Mg-cordierites |
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Sample: Synthesized in 2 at% bismuth oxide flux at 1000 C for 12 hours |
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Note: tetrahedral site occupancies are assumed, not refined |
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9.7850 9.7850 9.3495 90 90 120 P6/mcc |
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atom x y z occ Biso |
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MgM 1/3 2/3 .25 1.0 |
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AlT1 .5 .5 .25 2/3 1.6 |
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SiT1 .5 .5 .25 1/3 1.6 |
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AlT2 .3717 .2661 0 1/3 .7 |
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SiT2 .3717 .2661 0 2/3 .7 |
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O1 .48555 .34965 .14431 1.1 |
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O2 .2303 .3086 0 2.5 |
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BiC1 0 0 .25 .107 32 |
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BiC2 0 0 0 .061 17 |
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| Download AMC data (View Text File)
Download CIF data (View Text File)
Download diffraction data (View Text File)
View JMOL 3-D Structure
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