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Howlite
Howlite

Chlorastrolite
Chlorastrolite



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Howlite
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Chlorastrolite

Howlite and Chlorastrolite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.45-2.58
Conchoidal
None
3-3.5
Ca 2B 5SiO 9(OH) 5Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
 
-
-
-
3.1-3.5
Granular
None
5-6
Ca 2(Mg,Fe)Al 2(SiO 4)(Si 2O 7)(OH) 2 · H 2O)Arthur Thomas , Gemstones (2009)

Howlite and Chlorastrolite Chemical Formula

While comparing Howlite and Chlorastrolite 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 Chlorastrolite chemical formula.

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Howlite and Chlorastrolite Specific Gravity

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