Esperite and Apatite Physical Properties

Esperite

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

4.28-4.423.16-3.23

1 7.18

1.5 Fracture

Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Metallic

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

1.6 Cleavage

Distinct on [010] and [100] poor on [101]

[0001] indistinct, [1010] indistinct

1.7 Mohs Hardness

5-5.55

2 10

1.8 Chemical Composition

PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)

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

Esperite and Apatite Chemical Formula

While comparing Esperite 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 Esperite and Apatite chemical formula.

Chemical formula of Esperite- PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Apatite- Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references

Compare White Gemstones

Esperite Vs Hackmanite

Esperite Vs Hydrogrossular

Esperite Vs Hardystonite

Esperite and Apatite Specific Gravity

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