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Forsterite
Forsterite

Fluorite
Fluorite



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Forsterite
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Fluorite

Forsterite and Fluorite Physical Properties

Physical Properties

Tenacity

-
Brittle

Solubility

-
slightly water soluble and in hot hydrochloric acid

Durability

-
-

Specific Gravity

3.23-3.263.00-3.25
1 7.18
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Fracture

Conchoidal
Subconchoidal, Uneven, ConchoidalWalter Schumann

Cleavage

Perfect on {010} imperfect on {100}
Octahedral, perfect on {111}, parting on {011}

Mohs Hardness

6.5-74
2 10
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Chemical Composition

Mg 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006)
CaF2

Forsterite and Fluorite Chemical Formula

While comparing Forsterite and Fluorite 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 Fluorite chemical formula.

  • Chemical formula of Forsterite- Mg 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006)
  • Chemical formula of Fluorite- CaF2

Forsterite and Fluorite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Forsterite and Fluorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Forsterite and Fluorite Optical Properties during the identification of gemstone. Specific gravity of Forsterite is 3.00-3.25 whereas that of Fluorite is 3.00-3.25.