Hematite and Riebeckite Physical Properties

Hematite

Riebeckite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

5.00-5.303.28-3.44

1 7.18

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Fracture

Uneven, ConchoidalWalter Schumann, Conchoidal

Uneven, Splintery

Cleavage

None, may show partings on {0001} and {10 1 1}

Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}

Mohs Hardness

65.0-6.0

2 10

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Chemical Composition

Fe 2O 3Arthur Thomas , Gemstones (2009)

Na2Fe2+3Fe3+2Si8O22(OH)2

Hematite and Riebeckite Chemical Formula

While comparing Hematite and Riebeckite 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 Hematite and Riebeckite chemical formula.

Chemical formula of Hematite- Fe 2O 3Arthur Thomas , Gemstones (2009)
Chemical formula of Riebeckite- Na2Fe2+3Fe3+2Si8O22(OH)2

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Hematite and Riebeckite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hematite and Riebeckite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hematite and Riebeckite Optical Properties during the identification of gemstone. Specific gravity of Hematite is 3.28-3.44 whereas that of Riebeckite is 3.28-3.44.