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Helenite
Helenite

Melanite
Melanite



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Helenite
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Melanite

Helenite and Melanite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
-9999
-
Indiscernible
-9999
SiO2
 
-
-
-
3.70-4.10
Conchoidal
Indistinct
6.5-7
Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Helenite and Melanite Chemical Formula

While comparing Helenite and Melanite 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 Helenite and Melanite chemical formula.

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Helenite and Melanite Specific Gravity

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