Spodumene and Apatite Physical Properties

Spodumene

Apatite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

insoluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.15-3.213.16-3.23

1 7.18

1.5 Fracture

Uneven, Subconchoidal, Gemstones (2009)

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

1.6 Cleavage

Perfect prismatic, two directions {110} ∧ {1 1 0} at 87°

[0001] indistinct, [1010] indistinct

1.7 Mohs Hardness

6-75

2 10

1.8 Chemical Composition

LiAlSi₂O₆

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

Spodumene and Apatite Chemical Formula

While comparing Spodumene 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 Spodumene and Apatite chemical formula.

Chemical formula of Spodumene- LiAlSi₂O₆
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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Spodumene and Apatite Specific Gravity

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