Apatite and Tigers Eye Physical Properties

Apatite

Tigers Eye

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.16-3.23

2.58-2.64

1.5 Fracture

Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal to uneven

Gems, Sixth Edition (2006)

1.6 Cleavage

[0001] indistinct, [1010] indistinct

Indiscernible

1.7 Mohs Hardness

6.5-7

1.8 Chemical Composition

Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references

SiO₂

Apatite and Tigers Eye Chemical Formula

While comparing Apatite 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 Apatite and Tigers Eye chemical formula.

Chemical formula of Apatite- Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
Chemical formula of Tigers Eye- SiO₂

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Apatite and Tigers Eye Specific Gravity

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