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Jeremejevite and Howlite Physical Properties


Howlite and Jeremejevite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.28-3.31   
2.45-2.58   

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

Cleavage
None observed   
None   

Mohs Hardness
6.5-7.5   
3-3.5   

Chemical Composition
Al 6B 5O 15(F,OH) 3Ulrich Henn and Claudio C.   
Ca 2B 5SiO 9(OH) 5Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references   

Optical Properties >>
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Jeremejevite and Howlite Chemical Formula

While comparing Jeremejevite 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 Jeremejevite and Howlite chemical formula.

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Jeremejevite and Howlite Specific Gravity

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

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