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Geography Categories
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| Definition Of: |
Annite
 General Information: Chemical Formula:KFe++3AlSi3O10(OH,F)2 Composition:(Molecular Weight = 512.88 gm)Potassium 7.62 % K Aluminum 5.26 % AlIron 32.67 % FeSilicon 16.43 % SiHydrogen 0.29 % H Oxygen 35.87 % O Fluorine 1.85 % F Empirical Formula: KFe2+3AlSi3O10(OH)1.5F0.5 Physical Properties: Cleavage:[???] Perfect Color:reddish brown or black. Density:3.17 Diaphaniety:Transparent to Subopaque Hardness:2.5-3 - Finger Nail-Calcite Luster:Sub Metallic Streak:brownish white More details...
KFe3AlSi3O10(OH,F)2
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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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