Gaylussite and Apatite Physical Properties

Gaylussite

Apatite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

decomposes in water

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

1.93-1.993.16-3.23

1 7.18

1.5 Fracture

Conchoidal, Conchoidal, Brittle

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

1.6 Cleavage

perfect [110]

[0001] indistinct, [1010] indistinct

1.7 Mohs Hardness

2.55

2 10

1.8 Chemical Composition

Na2Ca(CO3)2•5(H2O)

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

Gaylussite and Apatite Chemical Formula

While comparing Gaylussite 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 Gaylussite and Apatite chemical formula.

Chemical formula of Gaylussite- Na2Ca(CO3)2•5(H2O)
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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Gaylussite and Apatite Specific Gravity

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