Anhydrite and Iolite Physical Properties

Anhydrite

Iolite

Add ⊕

1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.90-2.982.6-2.7

1 7.18

1.5 Fracture

Conchoidal, Brittle, Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal

Not Available

1.6 Cleavage

Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.

3,1

1.7 Mohs Hardness

3.57-7.5

2 10

1.8 Chemical Composition

CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

Mg₂Al₄Si₅O₁₈

Anhydrite and Iolite Chemical Formula

While comparing Anhydrite 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 Anhydrite and Iolite chemical formula.

Chemical formula of Anhydrite- CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Chemical formula of Iolite- Mg₂Al₄Si₅O₁₈

Compare Blue Gemstones

Anhydrite Vs Black Opal

Anhydrite Vs Beryl

Anhydrite Vs Azurmalachite

Anhydrite and Iolite Specific Gravity

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