Rossmanite and Iolite Physical Properties

Rossmanite

Iolite

Add ⊕

1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

32.6-2.7

1 7.18

1.5 Fracture

Brittle, Metallic

Not Available

1.6 Cleavage

None

3,1

1.7 Mohs Hardness

Not Available7-7.5

2 10

1.8 Chemical Composition

◻(LiAl 2)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

Mg₂Al₄Si₅O₁₈

Rossmanite and Iolite Chemical Formula

While comparing Rossmanite 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 Rossmanite and Iolite 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 Iolite- Mg₂Al₄Si₅O₁₈

Compare Gems Found in America

Rossmanite Vs Serpentine

Rossmanite Vs Scolecite

Rossmanite Vs Serandite

Rossmanite and Iolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rossmanite and Iolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rossmanite and Iolite Optical Properties during the identification of gemstone. Specific gravity of Rossmanite is 2.6-2.7 whereas that of Iolite is 2.6-2.7.