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Forsterite
Forsterite

Emerald
Emerald



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Forsterite
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Emerald

Forsterite and Emerald Physical Properties

Physical Properties

Tenacity

-
-

Solubility

-
-

Durability

-
Hard

Specific Gravity

3.23-3.262.67-2.78
1 7.18
👆🏻

Fracture

Conchoidal
Uneven, ConchoidalWalter Schumann

Cleavage

Perfect on {010} imperfect on {100}
Imperfect on the [0001]

Mohs Hardness

6.5-77.5-8
2 10
👆🏻

Chemical Composition

Mg 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006)
Be3Al2SiO6

Forsterite and Emerald Chemical Formula

While comparing Forsterite and Emerald 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 Emerald chemical formula.

  • Chemical formula of Forsterite- Mg 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006)
  • Chemical formula of Emerald- Be3Al2SiO6

Forsterite and Emerald Specific Gravity

Another important criteria for qualitative analysis of gemstones is Forsterite and Emerald Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Forsterite and Emerald Optical Properties during the identification of gemstone. Specific gravity of Forsterite is 2.67-2.78 whereas that of Emerald is 2.67-2.78.