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Danburite
Danburite

Star Sapphire
Star Sapphire



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Danburite
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Star Sapphire

Danburite and Star Sapphire Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
2.97-3.03
Uneven, ConchoidalWalter Schumann, Conchoidal
{001} Poor
7
CaB 2(SiO 4) 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
 
-
-
-
3.90-4.05
-
None
-9999
Al 2O 3Ulrich Henn and Claudio C.

Danburite and Star Sapphire Chemical Formula

While comparing Danburite and Star Sapphire 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 Star Sapphire chemical formula.

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Danburite and Star Sapphire Specific Gravity

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