Rossmanite and Labradorite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3
2.69-2.72
Fracture
Brittle, Metallic
Uneven, Conchoidal, Gems, Sixth Edition (2006)
Cleavage
None
Perfect on {001}, less perfect on {010}, intersecting at near 90°; distinct on {110}
Mohs Hardness
Not Available
6-6.5
Chemical Composition
◻(LiAl 2)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
(Na,Ca)1-2Si3-2O8
Rossmanite and Labradorite Chemical Formula
While comparing Rossmanite and Labradorite 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 Labradorite 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 Labradorite- (Na,Ca)1-2Si3-2O8
Rossmanite and Labradorite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Rossmanite and Labradorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rossmanite and Labradorite Optical Properties during the identification of gemstone. Specific gravity of Rossmanite is 2.69-2.72 whereas that of Labradorite is 2.69-2.72.