White Opal and Hematite Physical Properties

White Opal

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

1.98-2.505.00-5.30

1 7.18

1.5 Fracture

Conchoidal, Conchoidal, Gemstones of the world (2001)

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

1.6 Cleavage

Not Available

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

1.7 Mohs Hardness

5.5-6.56

2 10

1.8 Chemical Composition

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

Fe 2O 3Arthur Thomas , Gemstones (2009)

White Opal and Hematite Chemical Formula

While comparing White Opal 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 White Opal and Hematite chemical formula.

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

Compare Blue Gemstones

White Opal Vs Kyanite

White Opal Vs Idocrase

White Opal Vs Iolite

White Opal and Hematite Specific Gravity

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