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Aragonite and Hematite Physical Properties


Hematite and Aragonite Physical Properties


Physical Properties

Tenacity
Brittle   
Brittle   

Solubility
Dilute acid   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.93-2.96   
5.00-5.30   

Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle   
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle   

Cleavage
Distinct on {010}, imperfect {110} and {011}   
None, may show partings on {0001} and {10 1 1}   

Mohs Hardness
3.5-4   
6   

Chemical Composition
CaCO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references   
Fe 2O 3Arthur Thomas , Gemstones (2009)   

Optical Properties >>
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Aragonite and Hematite Chemical Formula

While comparing Aragonite and Hematite 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 Aragonite and Hematite chemical formula.

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Aragonite and Hematite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Aragonite and Hematite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Aragonite and Hematite Optical Properties during the identification of gemstone. Specific gravity of Aragonite is 5.00-5.30 whereas that of Hematite is 5.00-5.30.

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