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Mottramite and Dravite Physical Properties


Dravite and Mottramite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Soluble   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
5.9   
3.03-3.18   

Fracture
Sub-Conchoidal, Brittle, Metallic   
Uneven, Uneven, Irregular, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle   

Cleavage
None observed   
{???} Indistinct   

Mohs Hardness
3   
7-7.5   

Chemical Composition
Not Available   
Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)   

Optical Properties >>
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Mottramite and Dravite Chemical Formula

While comparing Mottramite and Dravite 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 Mottramite and Dravite chemical formula.

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Mottramite and Dravite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Mottramite and Dravite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Mottramite and Dravite Optical Properties during the identification of gemstone. Specific gravity of Mottramite is 3.03-3.18 whereas that of Dravite is 3.03-3.18.

Brown Gemstones

Brown Gemstones


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