Willemite and Fluorapatite Physical Properties

Willemite

Fluorapatite

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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

3.89-4.183.1-3.25

1 7.18

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Uneven

Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001)

1.6 Cleavage

{0001}, {11 2 0} imperfect

Indistinct

1.7 Mohs Hardness

5.55

2 10

1.8 Chemical Composition

Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Ca 5(PO 4) 3FAnthony et al , Handbook of mineralogy (2001)

Willemite and Fluorapatite Chemical Formula

While comparing Willemite and Fluorapatite 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 Willemite and Fluorapatite chemical formula.

Chemical formula of Willemite- Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Fluorapatite- Ca 5(PO 4) 3FAnthony et al , Handbook of mineralogy (2001)

Compare Red Gemstones

Willemite Vs Garnet Malaia

Willemite Vs Hessonite Garnet

Willemite Vs Garnet Color Change

Willemite and Fluorapatite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Willemite and Fluorapatite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Willemite and Fluorapatite Optical Properties during the identification of gemstone. Specific gravity of Willemite is 3.1-3.25 whereas that of Fluorapatite is 3.1-3.25.