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Sard
Sard

Forsterite
Forsterite



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Sard
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Forsterite

Sard and Forsterite Physical Properties

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Physical Properties

Tenacity

-
-

Solubility

-
-

Durability

-
-

Specific Gravity

2.58-2.633.23-3.26
1 7.18
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Fracture

Conchoidal
Conchoidal

Cleavage

None
Perfect on {010} imperfect on {100}

Mohs Hardness

6.5-76.5-7
2 10
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Chemical Composition

SiO 2Ulrich Henn and Claudio C.
Mg 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006)

Sard and Forsterite Chemical Formula

While comparing Sard 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 Sard and Forsterite chemical formula.

  • Chemical formula of Sard- SiO 2Ulrich Henn and Claudio C.
  • Chemical formula of Forsterite- Mg 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006)

Sard and Forsterite Specific Gravity

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