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Howlite and Blue spinel Physical Properties


Blue spinel and Howlite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.45-2.58   
Not Available   

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

Cleavage
None   
Not Available   

Mohs Hardness
3-3.5   
Not Available   

Chemical Composition
Ca 2B 5SiO 9(OH) 5Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references   
Not Available   

Optical Properties >>
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Howlite and Blue spinel Chemical Formula

While comparing Howlite and Blue spinel 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 Howlite and Blue spinel chemical formula.

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Howlite and Blue spinel Specific Gravity

Another important criteria for qualitative analysis of gemstones is Howlite and Blue spinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Howlite and Blue spinel Optical Properties during the identification of gemstone. Specific gravity of Howlite is Not Available whereas that of Blue spinel is Not Available.

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