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Demartinite |
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Gramaccioli C M, Campostrini I |
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The Canadian Mineralogist 45 (2007) 1275-1280 |
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Demartinite, a new polymorph of K2SiF6 from La Fossa Crater, Vulcano, |
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Aeolian Islands, Italy |
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Locality: La Fossa Crater, Vulcano Island, Aeolian Archipelago, Sicily, Italy |
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_database_code_amcsd 0006157 |
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5.6461 5.6461 9.2322 90 90 120 P6_3mc |
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atom x y z U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) |
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K1 2/3 1/3 .09275 .0188 .0188 .0210 .0094 0 0 |
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K2 0 0 .81199 .0244 .0244 .0294 .0122 0 0 |
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Si 1/3 2/3 .97559 .0134 .0134 .0142 .0067 0 0 |
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F1 .61751 .80875 .07798 .0185 .0242 .0248 .0093 -.0079 -.0040 |
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F2 .05287 .52644 .86889 .0184 .0260 .0240 .0092 -.0068 -.0034 |
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View JMOL 3-D Structure (permalink) |
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