Chrysoprase and Apatite Physical Properties

Chrysoprase

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

2.58-2.643.16-3.23

1 7.18

1.5 Fracture

Gems, Sixth Edition (2006)

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

1.6 Cleavage

None

[0001] indistinct, [1010] indistinct

1.7 Mohs Hardness

6.5-75

2 10

1.8 Chemical Composition

SiO₂ (with a high level of nickel impurities )

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

Chrysoprase and Apatite Chemical Formula

While comparing Chrysoprase 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 Chrysoprase and Apatite chemical formula.

Chemical formula of Chrysoprase- SiO₂ (with a high level of nickel impurities )
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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Chrysoprase and Apatite Specific Gravity

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