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Geography Categories
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| Definition Of: |
Yttrocolumbite-(Y)
 General Information: Chemical Formula:(Y,U,Fe++)(Nb,Ta)O4 IMA Status:Approved IMA 1987 Locality:Mozambique. Name Origin:Named for the composition (Ytterbium, Columbium (former name for niobium)). Physical Properties: Color:black. Density:5.7 - 6.15, Average = 5.92 Diaphaniety:Subtranslucent to Opaque Hardness:5-6 - Between Apatite and Orthoclase Luster:Sub Metallic Streak:brown More details...
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Mineralogy Dictionary INDEX:
List of Terms: Terms beginning with "A", Page 1 |
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Page Number:
1 2 3 4 A: Page 1 of 4.
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