Hyalite and Gahnite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
Not Available
4.00-4.62
Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001)
Conchoidal, Uneven
Cleavage
Not Available
Indistinct parting on [111]
Mohs Hardness
5.5-6.5
7.5-8
Chemical Composition
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Hyalite and Gahnite Chemical Formula
While comparing Hyalite and Gahnite 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 Hyalite and Gahnite chemical formula.
- Chemical formula of Hyalite- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
- Chemical formula of Gahnite- ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Hyalite and Gahnite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Hyalite and Gahnite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hyalite and Gahnite Optical Properties during the identification of gemstone. Specific gravity of Hyalite is 4.00-4.62 whereas that of Gahnite is 4.00-4.62.