Vivianite and Natrolite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.64-2.70
2.20-2.26
Fracture
(e.g. graphite).
Uneven, Brittle, Metallic, Gemstones (2009)
Cleavage
{010} Perfect
Perfect on {110}
Mohs Hardness
Not Available
5-5.5
Chemical Composition
Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
Na 2[Al 2Si 3O 10] · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Vivianite and Natrolite Chemical Formula
While comparing Vivianite and Natrolite 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 Natrolite chemical formula.
- Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
- Chemical formula of Natrolite- Na 2[Al 2Si 3O 10] · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Vivianite and Natrolite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Vivianite and Natrolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Vivianite and Natrolite Optical Properties during the identification of gemstone. Specific gravity of Vivianite is 2.20-2.26 whereas that of Natrolite is 2.20-2.26.