Spinel and Sylvite Physical Properties

Spinel

Sylvite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

none

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.64-3.661.993

1 7.18

1.5 Fracture

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)

Uneven, Brittle

1.6 Cleavage

None, but may exhibit slight parting

Perfect on [100], [010], [001]

1.7 Mohs Hardness

82.5

2 10

1.8 Chemical Composition

MgAl₂O₄

Not Available

Spinel and Sylvite Chemical Formula

While comparing Spinel and Sylvite 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 Spinel and Sylvite chemical formula.

Chemical formula of Spinel- MgAl₂O₄

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Spinel and Sylvite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Spinel and Sylvite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spinel and Sylvite Optical Properties during the identification of gemstone. Specific gravity of Spinel is 1.993 whereas that of Sylvite is 1.993.