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Stoppaniite |
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Ferraris G, Prencipe M, Rossi P |
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European Journal of Mineralogy 10 (1998) 491-496 |
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Stoppaniite, a new member of the beryl group: crystal structure |
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and crystal-chemical implications |
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_database_code_amcsd 0006751 |
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9.397 9.397 9.202 90 90 120 P6/mcc |
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atom x y z occ Uiso |
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FeM 1/3 2/3 1/4 .61 .013 |
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AlM 1/3 2/3 1/4 .21 .013 |
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MgM 1/3 2/3 1/4 .18 .013 |
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BeT' 1/2 0 1/4 2/3 .013 |
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SiT' 1/2 0 1/4 1/3 .013 |
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BeT" .3799 .1069 0 1/6 .012 |
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SiT" .3799 .1069 0 5/6 .012 |
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NaA' 0 0 0 .55 .038 |
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WatA" 0 0 1/4 .057 |
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O1 .3005 .2256 0 .018 |
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O2 .4890 .1353 .1470 .022 |
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