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Marble
Marble

Howlite
Howlite



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Marble
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Howlite

Marble and Howlite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
-9999
-
None
-9999
CaCO3
 
-
-
-
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

Marble and Howlite Chemical Formula

While comparing Marble 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 Marble and Howlite chemical formula.

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Marble and Howlite Specific Gravity

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