Spinel and Zinnwaldite Physical Properties

Spinel

Zinnwaldite

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1 Physical Properties

1.1 Tenacity

Not Available

Elastic

1.2 Solubility

none

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.64-3.662.9-3.1

1 7.18

1.5 Fracture

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)

Uneven

1.6 Cleavage

None, but may exhibit slight parting

Perfect basal {001}

1.7 Mohs Hardness

83.5-4.0

2 10

1.8 Chemical Composition

MgAl₂O₄

Not Available

Spinel and Zinnwaldite Chemical Formula

While comparing Spinel and Zinnwaldite 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 Zinnwaldite chemical formula.

Chemical formula of Spinel- MgAl₂O₄

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Spinel and Zinnwaldite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Spinel and Zinnwaldite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spinel and Zinnwaldite Optical Properties during the identification of gemstone. Specific gravity of Spinel is 2.9-3.1 whereas that of Zinnwaldite is 2.9-3.1.