Chalcedony and Albite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Soluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.55-2.70
2.60-2.65
Fracture
Uneven, Splintery, Conchoidal, Uneven, Splintery, Conchoidal, UnevenWalter Schumann
Uneven, Uneven, Gems, Sixth Edition (2006), Uneven, Conchoidal
Cleavage
Absent
Perfect on {001}, very good on {010}, imperfect on {110}
Mohs Hardness
6.5-7
6-6.5
Chemical Composition
SiO2
NaAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Chalcedony and Albite Chemical Formula
While comparing Chalcedony 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 Chalcedony and Albite chemical formula.
- Chemical formula of Chalcedony- SiO2
- Chemical formula of Albite- NaAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Chalcedony and Albite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Chalcedony and Albite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chalcedony and Albite Optical Properties during the identification of gemstone. Specific gravity of Chalcedony is 2.60-2.65 whereas that of Albite is 2.60-2.65.