Spinel and Tigers Eye Physical Properties

Spinel

Tigers Eye

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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

3.64-3.662.58-2.64

1 7.18

1.5 Fracture

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)

Gems, Sixth Edition (2006)

1.6 Cleavage

None, but may exhibit slight parting

Indiscernible

1.7 Mohs Hardness

86.5-7

2 10

1.8 Chemical Composition

MgAl₂O₄

SiO₂

Spinel and Tigers Eye Chemical Formula

While comparing Spinel and Tigers Eye 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 Tigers Eye chemical formula.

Chemical formula of Spinel- MgAl₂O₄
Chemical formula of Tigers Eye- SiO₂

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Spinel and Tigers Eye Specific Gravity

Another important criteria for qualitative analysis of gemstones is Spinel and Tigers Eye Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spinel and Tigers Eye Optical Properties during the identification of gemstone. Specific gravity of Spinel is 2.58-2.64 whereas that of Tigers Eye is 2.58-2.64.