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Geography Categories
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| Definition Of: |
Geffroyite
 General Information: Chemical Formula:(Ag,Cu,Fe)9(Se,S)8 Composition:(Molecular Weight = 1,342.22 gm)Iron 3.74 % FeCopper 12.78 % CuSilver 43.40 % AgSelenium 35.30 % SeSulfur 4.78 % S Empirical Formula: Ag5.4Cu2.7Fe2+0.9Se6S2 IMA Status:Approved IMA 1982 Physical Properties: Color:bronze brown. Density:5.39 Diaphaniety:Opaque Hardness:2.5 - Finger Nail Luster:Metallic 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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