Gahnite and Diaspore Physical Properties
Tenacity
Not Available
Very brittle
Solubility
Not Available
insoluble
Durability
Not Available
Not Available
Specific Gravity
4.00-4.62
3.30-3.40
Fracture
Conchoidal, Uneven
Conchoidal, Brittle, Conchoidal
Cleavage
Indistinct parting on [111]
{010} perfect, {110} distinct, {100} in traces
Mohs Hardness
7.5-8
6.5-7
Chemical Composition
ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Gahnite and Diaspore Chemical Formula
While comparing Gahnite and Diaspore 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 Gahnite and Diaspore chemical formula.
- Chemical formula of Gahnite- ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Diaspore- AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Gahnite and Diaspore Specific Gravity
Another important criteria for qualitative analysis of gemstones is Gahnite and Diaspore Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gahnite and Diaspore Optical Properties during the identification of gemstone. Specific gravity of Gahnite is 3.30-3.40 whereas that of Diaspore is 3.30-3.40.