Cat s Eye and Apatite Physical Properties

Cat s Eye

Apatite

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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

3.5-3.8

3.16-3.23

1.5 Fracture

Not Available

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

1.6 Cleavage

1,1 ; 3,2

[0001] indistinct, [1010] indistinct

1.7 Mohs Hardness

8.5

1.8 Chemical Composition

BeAl ₂ O ₄

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

Cat s Eye and Apatite Chemical Formula

While comparing Cat s Eye and Apatite 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 Cat s Eye and Apatite chemical formula.

Chemical formula of Cat s Eye- BeAl ₂ O ₄
Chemical formula of Apatite- Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references

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Cat s Eye and Apatite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cat s Eye and Apatite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cat s Eye and Apatite Optical Properties during the identification of gemstone. Specific gravity of Cat s Eye is 3.16-3.23 whereas that of Apatite is 3.16-3.23.