×

Kyanite
Kyanite

Achroite
Achroite



ADD
Compare
X
Kyanite
X
Achroite

Kyanite and Achroite Physical Properties

Add ⊕
Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
3.53-3.65
Splintery
[100] perfect [010] imperfect with 79° angle between
4-7
Al2SiO5
 
-
-
-
2.90-3.40
Uneven, ConchoidalWalter Schumann
Indiscernible
7-7.5
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.

Kyanite and Achroite Chemical Formula

While comparing Kyanite and Achroite 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 Achroite chemical formula.

    >>

Kyanite and Achroite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Kyanite and Achroite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kyanite Vs Achroite during the identification of gemstone. Specific gravity of Kyanite is whereas that of Achroite is .