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Howlite and Actinolite Physical Properties


Actinolite 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   
3.00   

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

Cleavage
None   
perfect along {110}.   

Mohs Hardness
3-3.5   
5-6   

Chemical Composition
Ca 2B 5SiO 9(OH) 5Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references   
Ca 2(Mg,Fe) 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.   

Optical Properties >>
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Howlite and Actinolite Chemical Formula

While comparing Howlite and Actinolite 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 Actinolite chemical formula.

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Howlite and Actinolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Howlite and Actinolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Howlite and Actinolite Optical Properties during the identification of gemstone. Specific gravity of Howlite is 3.00 whereas that of Actinolite is 3.00.

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