Pearl and Diaspore Physical Properties
Tenacity
Not Available
Very brittle
Solubility
Not Available
insoluble
Durability
Not Available
Not Available
Specific Gravity
2.60-2.85
3.30-3.40
Fracture
Gemstones of the world (2001), UnevenWalter Schumann, Gemstones of the world (2001)
Conchoidal, Brittle, Conchoidal
Cleavage
none
{010} perfect, {110} distinct, {100} in traces
Mohs Hardness
2.5-4.5
6.5-7
Chemical Composition
Not Available
AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Pearl and Diaspore Chemical Formula
While comparing Pearl and Diaspore 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 Pearl and Diaspore chemical formula.
>- Chemical formula of Diaspore- AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Pearl and Diaspore Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pearl and Diaspore Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pearl and Diaspore Optical Properties during the identification of gemstone. Specific gravity of Pearl is 3.30-3.40 whereas that of Diaspore is 3.30-3.40.