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