Pezzottaite and Chrome-Chalcedony Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.90-3.14
2.55-2.70
Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Not Available
Cleavage
Imperfect; basal
Not Available
Mohs Hardness
7.5-8
6.5-7
Chemical Composition
(Be,Cs) 3Al 2Si 6O 18 · 0.5H 2OUlrich Henn and Claudio C.
SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)
Pezzottaite and Chrome-Chalcedony Chemical Formula
While comparing Pezzottaite and Chrome-Chalcedony 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 Pezzottaite and Chrome-Chalcedony chemical formula.
- Chemical formula of Pezzottaite- (Be,Cs) 3Al 2Si 6O 18 · 0.5H 2OUlrich Henn and Claudio C.
- Chemical formula of Chrome-Chalcedony- SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)
Pezzottaite and Chrome-Chalcedony Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pezzottaite and Chrome-Chalcedony Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pezzottaite and Chrome-Chalcedony Optical Properties during the identification of gemstone. Specific gravity of Pezzottaite is 2.55-2.70 whereas that of Chrome-Chalcedony is 2.55-2.70.