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Sylvite
Sylvite

Howlite
Howlite



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Howlite

Sylvite and Howlite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
Soluble
-
1.993
Uneven
Perfect on [100], [010], [001]
2.5
KCl
 
-
-
-
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

Sylvite and Howlite Chemical Formula

While comparing Sylvite 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 Sylvite and Howlite chemical formula.

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Sylvite and Howlite Specific Gravity

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