Amethyst and Legrandite Physical Properties
Tenacity
Not Available
Brittle
Solubility
insoluble in common solvents
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.65
3.98-4.04
Fracture
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle
Cleavage
Indiscernible
Imperfect, poor one {100}
Chemical Composition
SiO2
Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Amethyst and Legrandite Chemical Formula
While comparing Amethyst and Legrandite 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 Legrandite chemical formula.
- Chemical formula of Amethyst- SiO2
- Chemical formula of Legrandite- Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Amethyst and Legrandite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Amethyst and Legrandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Amethyst and Legrandite Optical Properties during the identification of gemstone. Specific gravity of Amethyst is 3.98-4.04 whereas that of Legrandite is 3.98-4.04.