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Jet
Jet

Forsterite
Forsterite



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X
Jet
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Forsterite

Jet and Forsterite Physical Properties

Jet
Jet
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Physical Properties

Tenacity

-
-

Solubility

-
-

Durability

-
-

Specific Gravity

1.19-1.353.23-3.26
1 7.18
👆🏻

Fracture

ConchoidalWalter Schumann
Conchoidal

Cleavage

None
Perfect on {010} imperfect on {100}

Mohs Hardness

2.5-46.5-7
2 10
👆🏻

Chemical Composition

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

Jet and Forsterite Chemical Formula

While comparing Jet and Forsterite 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 Jet and Forsterite chemical formula.

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

Jet and Forsterite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Jet and Forsterite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Jet and Forsterite Optical Properties during the identification of gemstone. Specific gravity of Jet is 3.23-3.26 whereas that of Forsterite is 3.23-3.26.