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Vivianite
Vivianite

Brucite
Brucite



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Vivianite
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Brucite

Vivianite and Brucite Physical Properties

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1 Physical Properties
1.1 Tenacity
Not Available
Sectile
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.64-2.70
2.39
1.5 Fracture
(e.g. graphite).
Irregular
1.6 Cleavage
{010} Perfect
Perfect on {0001}
1.7 Mohs Hardness
Not Available
2.5
1.8 Chemical Composition
Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
Mg(OH) 2Michael O’Donoghue , Gems, Sixth Edition (2006)

Vivianite and Brucite Chemical Formula

While comparing Vivianite and Brucite 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 Vivianite and Brucite chemical formula.

  • Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
  • Chemical formula of Brucite- Mg(OH) 2Michael O’Donoghue , Gems, Sixth Edition (2006)

Vivianite and Brucite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Vivianite and Brucite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Vivianite and Brucite Optical Properties during the identification of gemstone. Specific gravity of Vivianite is 2.39 whereas that of Brucite is 2.39.