Apatite and Almandine Garnet Physical Properties

Apatite

Almandine Garnet

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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

3.16-3.234.3

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

[0001] indistinct, [1010] indistinct

None.

1.7 Mohs Hardness

57.5-8.5

2 10

1.8 Chemical Composition

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

Fe₃Al₂Si₃O₁₂

Apatite and Almandine Garnet Chemical Formula

While comparing Apatite and Almandine Garnet 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 Almandine Garnet 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 Almandine Garnet- Fe₃Al₂Si₃O₁₂

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Apatite and Almandine Garnet Specific Gravity

Another important criteria for qualitative analysis of gemstones is Apatite and Almandine Garnet Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apatite and Almandine Garnet Optical Properties during the identification of gemstone. Specific gravity of Apatite is 4.3 whereas that of Almandine Garnet is 4.3.