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Magnesite
Magnesite

Sillimanite
Sillimanite



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Magnesite
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Sillimanite

Magnesite and Sillimanite Physical Properties

Physical Properties

Tenacity

Brittle
Tough

Solubility

Effervesces in hot HCl
-

Durability

-
-

Specific Gravity

2.92-3.123.20-3.26
1 7.18
👆🏻

Fracture

Conchoidal
Splintery

Cleavage

[10 1 1] perfect
{010} perfect

Mohs Hardness

3.5-4.56-7.5
2 10
👆🏻

Chemical Composition

MgCO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
Al 2SiO 5Michael O’Donoghue , Gems, Sixth Edition (2006)

Magnesite and Sillimanite Chemical Formula

While comparing Magnesite and Sillimanite 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 Magnesite and Sillimanite chemical formula.

  • Chemical formula of Magnesite- MgCO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Sillimanite- Al 2SiO 5Michael O’Donoghue , Gems, Sixth Edition (2006)

Magnesite and Sillimanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Magnesite and Sillimanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Magnesite and Sillimanite Optical Properties during the identification of gemstone. Specific gravity of Magnesite is 3.20-3.26 whereas that of Sillimanite is 3.20-3.26.