Carnelian and Hematite Physical Properties

Carnelian

Hematite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.58-2.64

5.00-5.30

1.5 Fracture

Uneven, Splintery, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)

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

1.6 Cleavage

Absent

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

1.7 Mohs Hardness

6.5-7

1.8 Chemical Composition

SiO₂

Fe 2O 3Arthur Thomas , Gemstones (2009)

Carnelian and Hematite Chemical Formula

While comparing Carnelian 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 Carnelian and Hematite chemical formula.

Chemical formula of Carnelian- SiO₂
Chemical formula of Hematite- Fe 2O 3Arthur Thomas , Gemstones (2009)

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Carnelian and Hematite Specific Gravity

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