Feldspar and Albite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.56-2.75
2.60-2.65
Fracture
Uneven, Conchoidal, Uneven, Conchoidal, Gemstones of the world (2001)
Uneven, Uneven, Gems, Sixth Edition (2006), Uneven, Conchoidal
Cleavage
two or three
Perfect on {001}, very good on {010}, imperfect on {110}
Mohs Hardness
6-6.5
6-6.5
Chemical Composition
Not Available
NaAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Feldspar and Albite Chemical Formula
While comparing Feldspar and Albite 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 Feldspar and Albite chemical formula.
>- Chemical formula of Albite- NaAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Feldspar and Albite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Feldspar and Albite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Feldspar and Albite Optical Properties during the identification of gemstone. Specific gravity of Feldspar is 2.60-2.65 whereas that of Albite is 2.60-2.65.