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Lepidolite and Howlite Physical Properties


Howlite and Lepidolite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.80-2.90   
2.45-2.58   

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

Cleavage
{001} perfect   
None   

Mohs Hardness
2.5   
3-3.5   

Chemical Composition
Mg 3Si 4O 10(OH) 2Ulrich 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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Lepidolite and Howlite Chemical Formula

While comparing Lepidolite 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 Lepidolite and Howlite chemical formula.

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Lepidolite and Howlite Specific Gravity

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

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