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Pyrope
Pyrope

Apophyllite
Apophyllite



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Pyrope
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Apophyllite

Pyrope and Apophyllite Physical Properties

Physical Properties

Tenacity

-
-

Solubility

insoluble in water
-

Durability

-
-

Specific Gravity

3.62-3.872.30-2.50
1 7.18
👆🏻

Fracture

Conchoidal
Uneven

Cleavage

None
Perfect on (001)

Mohs Hardness

7-7.54.5-5
2 10
👆🏻

Chemical Composition

Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.

Pyrope and Apophyllite Chemical Formula

While comparing Pyrope and Apophyllite 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 Pyrope and Apophyllite chemical formula.

  • Chemical formula of Pyrope- Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
  • Chemical formula of Apophyllite- KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.

Pyrope and Apophyllite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyrope and Apophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrope and Apophyllite Optical Properties during the identification of gemstone. Specific gravity of Pyrope is 2.30-2.50 whereas that of Apophyllite is 2.30-2.50.