Spinel and Nepouite Physical Properties

Spinel

Nepouite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

none

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.64-3.663.18-3.24

1 7.18

1.5 Fracture

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)

Not Available

1.6 Cleavage

None, but may exhibit slight parting

perfect on {001}

1.7 Mohs Hardness

2 10

1.8 Chemical Composition

MgAl₂O₄

Not Available

Spinel and Nepouite Chemical Formula

While comparing Spinel and Nepouite 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 Nepouite chemical formula.

Chemical formula of Spinel- MgAl₂O₄

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Spinel and Nepouite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Spinel and Nepouite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spinel and Nepouite Optical Properties during the identification of gemstone. Specific gravity of Spinel is 3.18-3.24 whereas that of Nepouite is 3.18-3.24.