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Magnesite
Magnesite

Gahnite
Gahnite



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Magnesite and Gahnite Physical Properties

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1 Physical Properties
1.1 Tenacity
Brittle
Not Available
1.2 Solubility
Effervesces in hot HCl
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.92-3.12
4.00-4.62
1.5 Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Conchoidal, Uneven
1.6 Cleavage
[10 1 1] perfect
Indistinct parting on [111]
1.7 Mohs Hardness
3.5-4.5
7.5-8
1.8 Chemical Composition
MgCO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
ZnAl 2O 4Michael O’Donoghue , Gems, Sixth Edition (2006)

Magnesite and Gahnite Chemical Formula

While comparing Magnesite and Gahnite 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 Gahnite chemical formula.

  • Chemical formula of Magnesite- MgCO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Gahnite- ZnAl 2O 4Michael O’Donoghue , Gems, Sixth Edition (2006)

Magnesite and Gahnite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Magnesite and Gahnite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Magnesite and Gahnite Optical Properties during the identification of gemstone. Specific gravity of Magnesite is 4.00-4.62 whereas that of Gahnite is 4.00-4.62.