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Ashanite Mineral Data
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General Ashanite Information
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Chemical Formula: |
(Nb,Ta,U,Fe,Mn)4O8 |
Composition: |
Molecular Weight = 574.20 gm |
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La,Ce,Pr,Nd,Sm, 2.51 % RE 2.93 % REE2O3 |
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Uranium 20.73 % U 23.51 % UO2 |
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Tantalum 18.91 % Ta 23.09 % Ta2O5 |
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Manganese 2.87 % Mn 3.71 % MnO |
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Niobium 25.89 % Nb 37.03 % Nb2O5 |
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Iron 6.81 % Fe 8.76 % FeO |
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Oxygen 22.29 % O |
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______ ______ |
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100.00 % 99.02 % = TOTAL OXIDE |
Empirical Formula: |
Nb1.6Fe2+0.7Mn2+0.3Ta0.6U0.5REE0.1O8 |
Environment: |
In the central part of pegmatite in albitized two-mica granite. |
IMA Status: |
Discredited IMA 1998 |
Locality: |
From an undefined locality in the Altai Mountains, Sinkiang Uighur Autonomous Province, northwestern China. Link to MinDat.org Location Data. |
Name Origin: |
From Altai and SHAN, Chinese for "mountains," for the occurrence in the Altai Mountains, China. |
Name Pronunciation: |
Ashanite |
Synonym: |
Discredited |
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