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Geography Categories
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| Definition Of: |
Wilkinsonite
 General Information: Chemical Formula:Na2Fe++4Fe+++2Si6O20 Composition:(Molecular Weight = 869.56 gm)Sodium 5.29 % NaIron 38.53 % FeSilicon 19.38 % SiOxygen 36.80 % O Empirical Formula: Na2Fe2+4Fe3+2Si6O20 IMA Status:Approved IMA Physical Properties: Color:black. Diaphaniety:Subtransparent to Opaque Hardness:5 - Apatite Luster:Vitreous (Glassy) Streak:brown More details...
Na2Fe6Si6O20
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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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