Realgar and Hematite Physical Properties

Realgar

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

3.56

5.00-5.30

1.5 Fracture

(e.g. graphite).

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

1.6 Cleavage

{010} Good

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

1.7 Mohs Hardness

Not Available

1.8 Chemical Composition

AsSMichael OâDonoghue , Gems, Sixth Edition (2006)

Fe 2O 3Arthur Thomas , Gemstones (2009)

Realgar and Hematite Chemical Formula

While comparing Realgar 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 Realgar and Hematite chemical formula.

Chemical formula of Realgar- AsSMichael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Hematite- Fe 2O 3Arthur Thomas , Gemstones (2009)

Compare Red Gemstones

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Realgar Vs Sarcopside

Realgar Vs Rutile

Realgar and Hematite Specific Gravity

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