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Legrandite and Nuummite Physical Properties


Nuummite and Legrandite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.98-4.04   
3.18-3.37   

Fracture
Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle   
Conchoidal   

Cleavage
Imperfect, poor one {100}   
Perfect on 210   

Mohs Hardness
4.5-5   
5.5-6   

Chemical Composition
Zn 2(AsO 4)(OH) · H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references   
Not Available   

Optical Properties >>
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Legrandite and Nuummite Chemical Formula

While comparing Legrandite 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 Legrandite and Nuummite chemical formula.

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Legrandite and Nuummite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Legrandite and Nuummite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Legrandite and Nuummite Optical Properties during the identification of gemstone. Specific gravity of Legrandite is 3.18-3.37 whereas that of Nuummite is 3.18-3.37.

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