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Murmanite Mineral Data
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General Murmanite Information
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Chemical Formula: |
(Na,[ ])2{(Na,Ti)4[Ti2(O,H2O)4Si4O14](OH,F)2}•2H2O |
Composition: |
Molecular Weight = 750.89 gm |
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Sodium 9.18 % Na 12.38 % Na2O |
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Titanium 22.96 % Ti 38.30 % TiO2 |
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Niobium 4.95 % Nb 7.08 % Nb2O5 |
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Silicon 14.96 % Si 32.01 % SiO2 |
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Hydrogen 1.07 % H 9.60 % H2O |
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Oxygen 46.88 % O |
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______ ______ |
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100.00 % 99.36 % = TOTAL OXIDE |
Empirical Formula: |
Na3Ti3.6Nb0.4(Si2O7)2O4•4(H2O) |
Environment: |
Supergene alteration product of lomonsovite. |
IMA Status: |
Valid Species (Pre-IMA) 1923 |
Locality: |
Lu Javr and Hibina districts, Lovozero Massif, Murmansk, Kola peninsula, Russia. Link to MinDat.org Location Data. |
Name Origin: |
Named apparently for the locality. |
Name Pronunciation: |
Murmanite + Pronunciation |
Synonym: |
ICSD 62278 |
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PDF 40-479 |
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