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Thulite and Howlite Physical Properties


Howlite and Thulite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.1   
2.45-2.58   

Fracture
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)   
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal   

Cleavage
Perfect {010} imperfect {100}   
None   

Mohs Hardness
6-7   
3-3.5   

Chemical Composition
Ca2Al3(SiO4)3(OH)   
Ca 2B 5SiO 9(OH) 5Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references   

Optical Properties >>
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Thulite and Howlite Chemical Formula

While comparing Thulite and Howlite 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 Thulite and Howlite chemical formula.

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Thulite and Howlite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Thulite and Howlite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Thulite and Howlite Optical Properties during the identification of gemstone. Specific gravity of Thulite is 2.45-2.58 whereas that of Howlite is 2.45-2.58.

Red Gemstones

Red Gemstones


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