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Creedite
Creedite

Biotite
Biotite



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Creedite
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Biotite

Creedite and Biotite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
2.70
Uneven, Conchoidal
Perfect on {100}
4.5
Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.
 
Brittle
-
-
2.7-3.3
Uneven, Even
Perfect on the {001}
2.5-3.0
K(Mg,Fe++)3[AlSi3O10(OH,F)2

Creedite and Biotite Chemical Formula

While comparing Creedite and Biotite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Creedite and Biotite chemical formula.

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Creedite and Biotite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Creedite and Biotite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Creedite Vs Biotite during the identification of gemstone. Specific gravity of Creedite is whereas that of Biotite is .