Chalcedony and Hackmanite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Soluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.55-2.70
2.27-2.33
Fracture
Uneven, Splintery, Conchoidal, Uneven, Splintery, Conchoidal, UnevenWalter Schumann
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)
Cleavage
Absent
Not Available
Mohs Hardness
6.5-7
5.5-6
Chemical Composition
SiO2
Na 8Al 6Si 6O 24Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Chalcedony and Hackmanite Chemical Formula
While comparing Chalcedony and Hackmanite 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 Hackmanite chemical formula.
- Chemical formula of Chalcedony- SiO2
- Chemical formula of Hackmanite- Na 8Al 6Si 6O 24Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Chalcedony and Hackmanite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Chalcedony and Hackmanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chalcedony and Hackmanite Optical Properties during the identification of gemstone. Specific gravity of Chalcedony is 2.27-2.33 whereas that of Hackmanite is 2.27-2.33.