Jade and Apatite Physical Properties

Jade

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

2.90-3.383.16-3.23

1 7.18

1.5 Fracture

Gemstones of the world (2001), Difficult, Splintery

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

1.6 Cleavage

1 or 2,2 prismatic.

[0001] indistinct, [1010] indistinct

1.7 Mohs Hardness

6-75

2 10

1.8 Chemical Composition

Nephrite: Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂ Jadeite: NaAlSi₂O₆

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

Jade and Apatite Chemical Formula

While comparing Jade 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 Jade and Apatite chemical formula.

Chemical formula of Jade- Nephrite: Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂ Jadeite: NaAlSi₂O₆
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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Jade and Apatite Specific Gravity

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