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Phlogopite
Phlogopite

Sellaite
Sellaite



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Phlogopite
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Sellaite

Phlogopite and Sellaite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Tough
-
-
2.78-2.85
Uneven
Perfect basal (001)
2-2.5
KMg3(Si3Al)O10(F,OH)2
 
Brittle
-
-
3.14-3.16
Conchoidal
Perfect on {010} and {110}
5-5.5
MgF 2Ulrich Henn and Claudio C.

Phlogopite and Sellaite Chemical Formula

While comparing Phlogopite and Sellaite 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 Phlogopite and Sellaite chemical formula.

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Phlogopite and Sellaite Specific Gravity

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