Achroite and Iolite Physical Properties

Achroite

Iolite

Add ⊕

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

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.

2.6-2.7

3,1

7-7.5

Mg₂Al₄Si₅O₁₈

Achroite and Iolite Chemical Formula

While comparing Achroite and Iolite 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 Achroite and Iolite chemical formula.

Compare Gems Found in South Asia

Achroite Vs Apatite

Achroite Vs Apophyllite

Achroite Vs Aquamarine

Achroite and Iolite Specific Gravity

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