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Magnesite
Magnesite

Vivianite
Vivianite



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Magnesite and Vivianite Physical Properties

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
2.64-2.70
1.5 Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
(e.g. graphite).
1.6 Cleavage
[10 1 1] perfect
{010} Perfect
1.7 Mohs Hardness
3.5-4.5
Not Available
1.8 Chemical Composition
MgCO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.

Magnesite and Vivianite Chemical Formula

While comparing Magnesite and Vivianite 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 Vivianite chemical formula.

  • Chemical formula of Magnesite- MgCO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.

Magnesite and Vivianite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Magnesite and Vivianite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Magnesite and Vivianite Optical Properties during the identification of gemstone. Specific gravity of Magnesite is 2.64-2.70 whereas that of Vivianite is 2.64-2.70.