Hematite and Girasol Physical Properties

Hematite

Girasol

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

5.00-5.301.98-2.50

1 7.18

1.5 Fracture

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

Conchoidal, Conchoidal, Gemstones of the world (2001)

1.6 Cleavage

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

Not Available

1.7 Mohs Hardness

65.5-6.5

2 10

1.8 Chemical Composition

Fe 2O 3Arthur Thomas , Gemstones (2009)

SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)

Hematite and Girasol Chemical Formula

While comparing Hematite and Girasol 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 Girasol chemical formula.

Chemical formula of Hematite- Fe 2O 3Arthur Thomas , Gemstones (2009)
Chemical formula of Girasol- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)

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Hematite and Girasol Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hematite and Girasol Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hematite and Girasol Optical Properties during the identification of gemstone. Specific gravity of Hematite is 1.98-2.50 whereas that of Girasol is 1.98-2.50.