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Combeite |
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Fischer R X, Tillmanns E |
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Neues Jahrbuch fur Mineralogie, Monatshefte 1983 (1983) 49-59 |
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Die Kristallstrukturen von naturlichem Na2Ca2Si3O9 |
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vom Mt.Shaheru (Zaire) und aus dem Mayener Feld (Eifel) |
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Note: this is the low-temperature form of combeite |
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Locality: Mayener Feld, Eifel, Germany |
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_database_code_amcsd 0019534 |
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10.464 10.464 13.176 90 90 120 P3_2 |
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atom x y z occ Biso |
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Nal .6503 .0067 .4144 .5 1.3 |
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Na2 .9935 .1618 .3442 1.4 |
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Na3 .5042 .6784 .3389 1.12 |
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Na4 .652 .509 .679 1.4 |
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Na5 .1468 .9723 .1807 1.18 |
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Cal .9751 .6421 .3395 .66 |
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Ca2 .8438 .3332 .5055 .66 |
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Ca3 .3033 .8123 .4965 1.42 |
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Ca4 .9828 .6617 .5915 .5 1.11 |
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Si1 .4710 .1811 .5623 .81 |
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Si2 .1904 .4819 .4358 .29 |
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Si3 .6207 .4840 .4472 .53 |
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Si4 .4896 .6553 .5675 .46 |
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Si5 .8176 .8564 .2405 .66 |
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Si6 .8455 .8310 .7762 .61 |
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O1 .6015 .6131 .5077 1.2 |
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O2 .666 .1709 .1718 2.0 |
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O3 .347 .599 .4929 1.2 |
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O4 .778 .8907 .3498 1.4 |
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O5 .894 .804 .6726 1.4 |
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O6 .4773 .2659 .1305 .9 |
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O7 .261 .4331 .8940 1.3 |
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O8 .162 .235 .1162 1.5 |
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O9 .8866 .752 .2277 1.1 |
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O10 .5168 .088 .0009 1.3 |
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O11 .4410 .5765 .6760 1.1 |
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O12 .7613 .5766 .0128 1.3 |
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O13 .554 .780 .9949 1.4 |
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O14 .931 .011 .1832 1.4 |
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O15 .733 .6766 .8368 1.4 |
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O16 .666 .775 .1727 1.9 |
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O17 .8546 .4533 .2125 .7 |
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O18 .448 .531 .1148 1.5 |
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