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Gahnite and Humite Physical Properties


Humite and Gahnite Physical Properties


Physical Properties

Tenacity
Not Available   
Brittle   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
4.00-4.62   
3.20-3.32   

Fracture
Conchoidal, Uneven   
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal   

Cleavage
Indistinct parting on [111]   
Poor   

Mohs Hardness
7.5-8   
6-6.5   

Chemical Composition
ZnAl 2O 4Michael O’Donoghue , Gems, Sixth Edition (2006)   
(Mg,Fe2+ ) 7(SiO 4) 3(F,OH) 2Anthony et al , Handbook of mineralogy (2001)   

Optical Properties >>
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Gahnite and Humite Chemical Formula

While comparing Gahnite and Humite 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 Gahnite and Humite chemical formula.

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Gahnite and Humite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gahnite and Humite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gahnite and Humite Optical Properties during the identification of gemstone. Specific gravity of Gahnite is 3.20-3.32 whereas that of Humite is 3.20-3.32.

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