Fire Opal and Hematite Physical Properties

Fire 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

1.97-2.225.00-5.30

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

6-6.56

2 10

1.8 Chemical Composition

SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001) More from other references

Fe 2O 3Arthur Thomas , Gemstones (2009)

Fire Opal and Hematite Chemical Formula

While comparing Fire 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 Fire Opal and Hematite chemical formula.

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

Compare Red Gemstones

Fire Opal Vs Hackmanite

Fire Opal Vs Garnet

Fire Opal Vs Hexagonite

Fire Opal and Hematite Specific Gravity

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