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Rosasite and Howlite Physical Properties


Howlite and Rosasite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Effervesces in cold   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
4-4.2   
2.45-2.58   

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

Cleavage
Perfect on {100} and {010}   
None   

Mohs Hardness
4   
3-3.5   

Chemical Composition
Not Available   
Ca 2B 5SiO 9(OH) 5Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references   

Optical Properties >>
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Rosasite and Howlite Chemical Formula

While comparing Rosasite 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 Rosasite and Howlite chemical formula.

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Rosasite and Howlite Specific Gravity

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

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