Rossmanite and Lazulite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3
3.04-3.17
Fracture
Brittle, Metallic
Uneven, Uneven, Gemstones of the world (2001) More from other references
Cleavage
None
{001} Indistinct, {???} Indistinct
Mohs Hardness
Not Available
5.5
Chemical Composition
◻(LiAl 2)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
Rossmanite and Lazulite Chemical Formula
While comparing Rossmanite and Lazulite 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 Lazulite 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 Lazulite- (Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
Rossmanite and Lazulite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Rossmanite and Lazulite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rossmanite and Lazulite Optical Properties during the identification of gemstone. Specific gravity of Rossmanite is 3.04-3.17 whereas that of Lazulite is 3.04-3.17.