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Forsterite
Forsterite

Annabergite
Annabergite



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Forsterite
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Annabergite

Forsterite and Annabergite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Sectile
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.23-3.263.07
Amber
1 7.18
1.5 Fracture
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Brittle, Metallic, Brittle, Metallic, Brittle, Metallic
1.6 Cleavage
Perfect on {010} imperfect on {100}
Perfect on {010}, indistinct on {100} and {102}
1.7 Mohs Hardness
6.5-72
Amber
2 10
1.8 Chemical Composition
Mg 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006)
Ni3(AsO4)2•8(H2O)

Forsterite and Annabergite Chemical Formula

While comparing Forsterite 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 Forsterite and Annabergite chemical formula.

  • Chemical formula of Forsterite- Mg 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006)
  • Chemical formula of Annabergite- Ni3(AsO4)2•8(H2O)

Forsterite and Annabergite Specific Gravity

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