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Pyrope
Pyrope

Annabergite
Annabergite



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Pyrope
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Annabergite

Pyrope and Annabergite Physical Properties

Physical Properties

Tenacity

-
Sectile

Solubility

insoluble in water
-

Durability

-
-

Specific Gravity

3.62-3.873.07
1 7.18
👆🏻

Fracture

Conchoidal
-

Cleavage

None
Perfect on {010}, indistinct on {100} and {102}

Mohs Hardness

7-7.52
2 10
👆🏻

Chemical Composition

Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Ni3(AsO4)2•8(H2O)

Pyrope and Annabergite Chemical Formula

While comparing Pyrope and Annabergite 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 Annabergite chemical formula.

  • Chemical formula of Pyrope- Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
  • Chemical formula of Annabergite- Ni3(AsO4)2•8(H2O)

Pyrope and Annabergite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyrope and Annabergite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrope and Annabergite Optical Properties during the identification of gemstone. Specific gravity of Pyrope is 3.07 whereas that of Annabergite is 3.07.