Sillimanite and Magnetite Physical Properties

Sillimanite

Magnetite

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1 Physical Properties

1.1 Tenacity

Tough

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.20-3.265.2

1 7.18

1.5 Fracture

Splintery

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

1.6 Cleavage

{010} perfect

None

1.7 Mohs Hardness

6-7.55.5-6.5

2 10

1.8 Chemical Composition

Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)

Fe 3O 4Ulrich Henn and Claudio C.

Sillimanite and Magnetite Chemical Formula

While comparing Sillimanite and Magnetite 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 Sillimanite and Magnetite chemical formula.

Chemical formula of Sillimanite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Magnetite- Fe 3O 4Ulrich Henn and Claudio C.

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Sillimanite and Magnetite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sillimanite and Magnetite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sillimanite and Magnetite Optical Properties during the identification of gemstone. Specific gravity of Sillimanite is 5.2 whereas that of Magnetite is 5.2.