Vivianite and Ulexite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.64-2.70
1.65-1.99
Fracture
(e.g. graphite).
UnevenAnthony et al, Uneven, UnevenAnthony et al, Uneven, Brittle, Metallic
Cleavage
{010} Perfect
{010} Perfect, {110} Perfect
Mohs Hardness
Not Available
2-2.5
Chemical Composition
Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
NaCaB 5O 6(OH) 6 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Vivianite and Ulexite Chemical Formula
While comparing Vivianite and Ulexite 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 Ulexite chemical formula.
- Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
- Chemical formula of Ulexite- NaCaB 5O 6(OH) 6 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Vivianite and Ulexite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Vivianite and Ulexite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Vivianite and Ulexite Optical Properties during the identification of gemstone. Specific gravity of Vivianite is 1.65-1.99 whereas that of Ulexite is 1.65-1.99.