Nuummite and Spinel Physical Properties

Nuummite

Spinel

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

none

1.3 Durability

Not Available

1.4 Specific Gravity

3.18-3.373.64-3.66

1 7.18

1.5 Fracture

Conchoidal

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Perfect on 210

None, but may exhibit slight parting

1.7 Mohs Hardness

5.5-68

2 10

1.8 Chemical Composition

Not Available

MgAl₂O₄

Nuummite and Spinel Chemical Formula

While comparing Nuummite and Spinel 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 Nuummite and Spinel chemical formula.

Chemical formula of Spinel- MgAl₂O₄

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Nuummite and Spinel Specific Gravity

Another important criteria for qualitative analysis of gemstones is Nuummite and Spinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Nuummite and Spinel Optical Properties during the identification of gemstone. Specific gravity of Nuummite is 3.64-3.66 whereas that of Spinel is 3.64-3.66.