Apatite and Rhodolite Physical Properties

Apatite

Rhodolite

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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

3.16-3.23

3.84

1.5 Fracture

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

Conchoidal

1.6 Cleavage

[0001] indistinct, [1010] indistinct

none, may show indistinct parting

1.7 Mohs Hardness

7-7.5

1.8 Chemical Composition

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

(Mg,Fe)₃Al₂Si₃O₁₂

Apatite and Rhodolite Chemical Formula

While comparing Apatite and Rhodolite 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 Apatite and Rhodolite 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
Chemical formula of Rhodolite- (Mg,Fe)₃Al₂Si₃O₁₂

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Apatite and Rhodolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Apatite and Rhodolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apatite and Rhodolite Optical Properties during the identification of gemstone. Specific gravity of Apatite is 3.84 whereas that of Rhodolite is 3.84.