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Howlite and Villiaumite Physical Properties


Villiaumite 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   
2.79   

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

Cleavage
None   
{100} Perfect, {010} Perfect, {001} Perfect   

Mohs Hardness
3-3.5   
2   

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

Optical Properties >>
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Howlite and Villiaumite Chemical Formula

While comparing Howlite and Villiaumite 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 Villiaumite chemical formula.

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Howlite and Villiaumite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Howlite and Villiaumite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Howlite and Villiaumite Optical Properties during the identification of gemstone. Specific gravity of Howlite is 2.79 whereas that of Villiaumite is 2.79.

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