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Sellaite
Sellaite

Nuummite
Nuummite



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Sellaite
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Nuummite

Sellaite and Nuummite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
3.14-3.16
Conchoidal
Perfect on {010} and {110}
5-5.5
MgF 2Ulrich Henn and Claudio C.
 
-
-
-
3.18-3.37
Conchoidal
Perfect on 210
5.5-6
Na(Fe,Mg)7(AlSi7O22)(OH)2

Sellaite and Nuummite Chemical Formula

While comparing Sellaite and Nuummite 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 Sellaite and Nuummite chemical formula.

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Sellaite and Nuummite Specific Gravity

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