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Mellite
Mellite

Siderite
Siderite



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Mellite
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Siderite

Mellite and Siderite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
1.58-1.60
Conchoidal
{011} Imperfect
2
Al 2(Cl 2O 12) · 18H 2OUlrich Henn and Claudio C.
 
Brittle
-
-
3.83-3.89
Uneven, Conchoidal
Perfect on {01 1 1}
3.5-4.5
Fe2+ CO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Mellite and Siderite Chemical Formula

While comparing Mellite and Siderite 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 Mellite and Siderite chemical formula.

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Mellite and Siderite Specific Gravity

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