Boracite and Vivianite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Soluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.95-2.96
2.64-2.70
Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
(e.g. graphite).
Cleavage
None
{010} Perfect
Mohs Hardness
7-7.5
Not Available
Chemical Composition
Mg 3B 7O 13ClMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
Boracite and Vivianite Chemical Formula
While comparing Boracite 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 Boracite and Vivianite chemical formula.
- Chemical formula of Boracite- Mg 3B 7O 13ClMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
Boracite and Vivianite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Boracite and Vivianite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Boracite and Vivianite Optical Properties during the identification of gemstone. Specific gravity of Boracite is 2.64-2.70 whereas that of Vivianite is 2.64-2.70.