Hematite and Andesine Physical Properties

Hematite

Andesine

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

5.00-5.302.65-2.69

1 7.18

1.5 Fracture

Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle

Uneven, Uneven, Conchoidal, Uneven, Gems, Sixth Edition (2006)

1.6 Cleavage

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

Perfect on {001}, good on {010}

1.7 Mohs Hardness

66-6.5

2 10

1.8 Chemical Composition

Fe 2O 3Arthur Thomas , Gemstones (2009)

(Na,Ca)Al_1-2Si_3-2O₈

Hematite and Andesine Chemical Formula

While comparing Hematite and Andesine 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 Andesine chemical formula.

Chemical formula of Hematite- Fe 2O 3Arthur Thomas , Gemstones (2009)
Chemical formula of Andesine- (Na,Ca)Al_1-2Si_3-2O₈

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Hematite and Andesine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hematite and Andesine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hematite and Andesine Optical Properties during the identification of gemstone. Specific gravity of Hematite is 2.65-2.69 whereas that of Andesine is 2.65-2.69.