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Geography Categories
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| Definition Of: |
Ashanite
 General Information: Chemical Formula:(Nb,Ta,U,Fe,Mn)4O8 Composition:(Molecular Weight = 681.34 gm)Uranium 27.95 % U Tantalum 26.56 % TaManganese 1.61 % MnNiobium 21.82 % NbIron 3.28 % FeOxygen 18.79 % O Empirical Formula: 4(Nb0.4)4(Ta0.25)4(U0.2)4(Fe2+0.1)4(Mn2+0.05)O8 Environment:Ashanite = a mixture of Ixiolite, Samarskite-(Y) and Uranmicrolite IMA Status:Discredited IMA 1998 Physical Properties: Cleavage:None Color:dark brown or black. Density:6.61 Diaphaniety:Opaque Hardness:6-6.5 - Orthoclase-Pyrite Luster:Sub Metallic Streak:brown More details...
(Nb,Ta, ,Fe,Mn)4O8
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Mineralogy INDEX:
List of Terms: Terms beginning with "A", Page 1 |
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Page Number:
1 2 3 A: Page 1 of 3.
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