Gahnite and Nosean Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
4.00-4.62
2.30-2.40
Fracture
Conchoidal, Uneven
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Cleavage
Indistinct parting on [111]
{110} Perfect
Mohs Hardness
7.5-8
Not Available
Chemical Composition
ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Na 8Al 6Si 6O 24(SO 4) · H 2OAnthony et al , Handbook of Mineralogy (2001)
Gahnite and Nosean Chemical Formula
While comparing Gahnite and Nosean 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 Nosean chemical formula.
- Chemical formula of Gahnite- ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Nosean- Na 8Al 6Si 6O 24(SO 4) · H 2OAnthony et al , Handbook of Mineralogy (2001)
Gahnite and Nosean Specific Gravity
Another important criteria for qualitative analysis of gemstones is Gahnite and Nosean Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gahnite and Nosean Optical Properties during the identification of gemstone. Specific gravity of Gahnite is 2.30-2.40 whereas that of Nosean is 2.30-2.40.