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Geography Categories
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| Definition Of: |
Magnesio-arfvedsonite
 General Information: Chemical Formula:NaNa2(Mg4Fe++)Si8O22(OH)2 Composition:(Molecular Weight = 832.72 gm)Sodium 8.28 % NaMagnesium 11.67 % MgIron 6.71 % FeSilicon 26.98 % SiHydrogen 0.24 % H Oxygen 46.11 % O Empirical Formula: Na3Mg4Fe3+(Si8O22)(OH)2 IMA Status:Approved IMA 1978 Physical Properties: Color:black or gray. Density:3.17 Diaphaniety:Subopaque Hardness:5-6 - Between Apatite and Orthoclase Luster:Vitreous (Glassy) 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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