Kyanite and Lazulite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.53-3.65
3.04-3.17
Fracture
Splintery, Brittle, Metallic
Uneven, Uneven, Gemstones of the world (2001) More from other references
Cleavage
[100] perfect [010] imperfect with 79° angle between
{001} Indistinct, {???} Indistinct
Chemical Composition
Not Available
(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
Kyanite and Lazulite Chemical Formula
While comparing Kyanite 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 Kyanite and Lazulite chemical formula.
>- Chemical formula of Lazulite- (Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
Kyanite and Lazulite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Kyanite and Lazulite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kyanite and Lazulite Optical Properties during the identification of gemstone. Specific gravity of Kyanite is 3.04-3.17 whereas that of Lazulite is 3.04-3.17.