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Nuummite
Nuummite

Legrandite
Legrandite



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Nuummite
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Legrandite

Nuummite and Legrandite 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
 
Brittle
-
-
3.98-4.04
Conchoidal
Imperfect, poor one {100}
4.5-5
Zn 2(AsO 4)(OH) · H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Nuummite and Legrandite Chemical Formula

While comparing Nuummite and Legrandite 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 Legrandite chemical formula.

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Nuummite and Legrandite Specific Gravity

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