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Forsterite
Forsterite

Andesine
Andesine



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Forsterite
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Andesine

Forsterite and Andesine Physical Properties

Physical Properties

Tenacity

-
Brittle

Solubility

-
-

Durability

-
-

Specific Gravity

3.23-3.262.65-2.69
1 7.18
👆🏻

Fracture

Conchoidal
Uneven, Conchoidal

Cleavage

Perfect on {010} imperfect on {100}
Perfect on {001}, good on {010}

Mohs Hardness

6.5-76-6.5
2 10
👆🏻

Chemical Composition

Mg 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006)
(Na,Ca)Al1-2Si3-2O8

Forsterite and Andesine Chemical Formula

While comparing Forsterite and Andesine 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 Andesine chemical formula.

  • Chemical formula of Forsterite- Mg 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006)
  • Chemical formula of Andesine- (Na,Ca)Al1-2Si3-2O8

Forsterite and Andesine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Forsterite and Andesine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Forsterite and Andesine Optical Properties during the identification of gemstone. Specific gravity of Forsterite is 2.65-2.69 whereas that of Andesine is 2.65-2.69.