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Tourmaline
Tourmaline

Siderite
Siderite



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Tourmaline
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Siderite

Tourmaline and Siderite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.85-3.35
Uneven, Conchoidal
Indistinct
7-7.5
Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.
 
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

Tourmaline and Siderite Chemical Formula

While comparing Tourmaline 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 Tourmaline and Siderite chemical formula.

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Tourmaline and Siderite Specific Gravity

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