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Schorl
Schorl

Melanite
Melanite



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Schorl
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Melanite

Schorl and Melanite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.18-3.22
Uneven, Conchoidal
{1011} Indistinct
-9999
Na(Fe2+3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
 
-
-
-
3.70-4.10
Conchoidal
Indistinct
6.5-7
Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Schorl and Melanite Chemical Formula

While comparing Schorl 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 Schorl and Melanite chemical formula.

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Schorl and Melanite Specific Gravity

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