Vishnevite and Apatite Physical Properties

Vishnevite

Apatite

Add ⊕

1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

Not Available3.16-3.23

1 7.18

1.5 Fracture

Brittle, Uneven

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

1.6 Cleavage

Perfect

[0001] indistinct, [1010] indistinct

1.7 Mohs Hardness

5-65

2 10

1.8 Chemical Composition

Not Available

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

Vishnevite and Apatite Chemical Formula

While comparing Vishnevite 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 Vishnevite and Apatite chemical formula.

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

Compare Blue Gemstones

Vishnevite Vs Kainite

Vishnevite Vs Lawsonite

Vishnevite Vs Plumbogummite

Vishnevite and Apatite Specific Gravity

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