Gahnite and Hematite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
4.00-4.62
5.00-5.30
Fracture
Conchoidal, Uneven
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
Cleavage
Indistinct parting on [111]
None, may show partings on {0001} and {10 1 1}
Chemical Composition
ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Fe 2O 3Arthur Thomas , Gemstones (2009)
Gahnite and Hematite Chemical Formula
While comparing Gahnite and Hematite 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 Hematite chemical formula.
- Chemical formula of Gahnite- ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Hematite- Fe 2O 3Arthur Thomas , Gemstones (2009)
Gahnite and Hematite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Gahnite and Hematite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gahnite and Hematite Optical Properties during the identification of gemstone. Specific gravity of Gahnite is 5.00-5.30 whereas that of Hematite is 5.00-5.30.