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Apatite
Apatite

Demantoid
Demantoid



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Apatite
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Demantoid

Apatite and Demantoid Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.16-3.23
Conchoidal, Uneven, Conchoidal to uneven
[0001] indistinct, [1010] indistinct
5
Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
 
-
-
-
3.77-3.95
-
Imperfect
6.5
Ca 3Fe 2(SiO 4) 3Ulrich Henn and Claudio C.

Apatite and Demantoid Chemical Formula

While comparing Apatite and Demantoid 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 Demantoid chemical formula.

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Apatite and Demantoid Specific Gravity

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