Magnetite and Onyx Physical Properties

Magnetite

Onyx

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

5.22.55-2.70

1 7.18

1.5 Fracture

Uneven, Uneven, Management Team (2012), Conchoidal, Brittle

Not Available

1.6 Cleavage

None

Indiscernible

1.7 Mohs Hardness

5.5-6.56.5-7

2 10

1.8 Chemical Composition

Fe 3O 4Ulrich Henn and Claudio C.

SiO₂

Magnetite and Onyx Chemical Formula

While comparing Magnetite and Onyx 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 Magnetite and Onyx chemical formula.

Chemical formula of Magnetite- Fe 3O 4Ulrich Henn and Claudio C.
Chemical formula of Onyx- SiO₂

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Magnetite and Onyx Specific Gravity

Another important criteria for qualitative analysis of gemstones is Magnetite and Onyx Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Magnetite and Onyx Optical Properties during the identification of gemstone. Specific gravity of Magnetite is 2.55-2.70 whereas that of Onyx is 2.55-2.70.