Rossmanite and Diaspore Physical Properties
Tenacity
Not Available
Very brittle
Solubility
Not Available
insoluble
Durability
Not Available
Not Available
Specific Gravity
3
3.30-3.40
Fracture
Brittle, Metallic
Conchoidal, Brittle, Conchoidal
Cleavage
None
{010} perfect, {110} distinct, {100} in traces
Mohs Hardness
Not Available
6.5-7
Chemical Composition
◻(LiAl 2)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Rossmanite and Diaspore Chemical Formula
While comparing Rossmanite 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 Rossmanite and Diaspore chemical formula.
- Chemical formula of Rossmanite- ◻(LiAl 2)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
- Chemical formula of Diaspore- AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Rossmanite and Diaspore Specific Gravity
Another important criteria for qualitative analysis of gemstones is Rossmanite and Diaspore Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rossmanite and Diaspore Optical Properties during the identification of gemstone. Specific gravity of Rossmanite is 3.30-3.40 whereas that of Diaspore is 3.30-3.40.