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Nuummite
Nuummite

Bertrandite
Bertrandite



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Nuummite
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Bertrandite

Nuummite and Bertrandite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.18-3.37
Conchoidal
Perfect on 210
5.5-6
Na(Fe,Mg)7(AlSi7O22)(OH)2
 
-
-
-
2.59-2.60
-
{001} Perfect, {110} Distinct, {101} Distinct
6-7
Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)

Nuummite and Bertrandite Chemical Formula

While comparing Nuummite and Bertrandite 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 Nuummite and Bertrandite chemical formula.

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Nuummite and Bertrandite Specific Gravity

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