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Hodgkinsonite and Star Sapphire Physical Properties


Star Sapphire and Hodgkinsonite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
4.06-4.08   
3.90-4.05   

Fracture
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic   
Not Available   

Cleavage
{???} Perfect   
Not Available   

Mohs Hardness
4.5-5   
Not Available   

Chemical Composition
Mn2+ Zn 2SiO 4(OH) 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references   
Al 2O 3Ulrich Henn and Claudio C.   

Optical Properties >>
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Hodgkinsonite and Star Sapphire Chemical Formula

While comparing Hodgkinsonite 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 Hodgkinsonite and Star Sapphire chemical formula.

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Hodgkinsonite and Star Sapphire Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hodgkinsonite and Star Sapphire Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hodgkinsonite and Star Sapphire Optical Properties during the identification of gemstone. Specific gravity of Hodgkinsonite is 3.90-4.05 whereas that of Star Sapphire is 3.90-4.05.

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