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Danburite and Hollandite Physical Properties


Hollandite and Danburite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.97-3.03   
5.05   

Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle   
Brittle, Metallic   

Cleavage
{001} Poor   
Distinct / Good, Prismatic   

Mohs Hardness
7   
4-6   

Chemical Composition
CaB 2(SiO 4) 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references   
Ba(Mn++++,Mn++)8O16   

Optical Properties >>
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Danburite and Hollandite Chemical Formula

While comparing Danburite and Hollandite 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 Danburite and Hollandite chemical formula.

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Danburite and Hollandite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Danburite and Hollandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Danburite and Hollandite Optical Properties during the identification of gemstone. Specific gravity of Danburite is 5.05 whereas that of Hollandite is 5.05.

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Yellow Gemstones


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