Amethyst and Brazilianite Physical Properties
Tenacity
Not Available
Not Available
Solubility
insoluble in common solvents
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.65
2.98-2.99
Fracture
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
Conchoidal, Gems
Cleavage
Indiscernible
(010) Distinct to good
Chemical Composition
SiO2
NaAl 3(PO 4) 2(OH) 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Amethyst and Brazilianite Chemical Formula
While comparing Amethyst and Brazilianite 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 Amethyst and Brazilianite chemical formula.
- Chemical formula of Amethyst- SiO2
- Chemical formula of Brazilianite- NaAl 3(PO 4) 2(OH) 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Amethyst and Brazilianite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Amethyst and Brazilianite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Amethyst and Brazilianite Optical Properties during the identification of gemstone. Specific gravity of Amethyst is 2.98-2.99 whereas that of Brazilianite is 2.98-2.99.