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Augite
Augite

Vivianite
Vivianite



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Augite and Vivianite Physical Properties

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1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.19-3.56
2.64-2.70
1.5 Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
(e.g. graphite).
1.6 Cleavage
{110} Perfect, {010} Indistinct
{010} Perfect
1.7 Mohs Hardness
5.5-6
Not Available
1.8 Chemical Composition
(Ca,Na)(Mg,Fe,Al,Ti)(Si,Al) 2O 6Anthony et al , Handbook of mineralogy (2001)
Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.

Augite and Vivianite Chemical Formula

While comparing Augite 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 Augite and Vivianite chemical formula.

  • Chemical formula of Augite- (Ca,Na)(Mg,Fe,Al,Ti)(Si,Al) 2O 6Anthony et al , Handbook of mineralogy (2001)
  • Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.

Augite and Vivianite Specific Gravity

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