Diaspore and Chalcedony Physical Properties
Tenacity
Very brittle
Not Available
Solubility
insoluble
Soluble
Durability
Not Available
Not Available
Specific Gravity
3.30-3.40
2.55-2.70
Fracture
Conchoidal, Brittle, Conchoidal
Uneven, Splintery, Conchoidal, Uneven, Splintery, Conchoidal, UnevenWalter Schumann
Cleavage
{010} perfect, {110} distinct, {100} in traces
Absent
Mohs Hardness
6.5-7
6.5-7
Chemical Composition
AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
SiO2
Diaspore and Chalcedony Chemical Formula
While comparing Diaspore and 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 Diaspore and Chalcedony chemical formula.
- Chemical formula of Diaspore- AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
- Chemical formula of Chalcedony- SiO2
Diaspore and Chalcedony Specific Gravity
Another important criteria for qualitative analysis of gemstones is Diaspore and Chalcedony Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Diaspore and Chalcedony Optical Properties during the identification of gemstone. Specific gravity of Diaspore is 2.55-2.70 whereas that of Chalcedony is 2.55-2.70.