Iolite and Strontianite Physical Properties

Iolite

Strontianite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.6-2.73.63-3.79

1 7.18

1.5 Fracture

Not Available

Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

1.6 Cleavage

3,1

{110} Good

1.7 Mohs Hardness

7-7.53.5

2 10

1.8 Chemical Composition

Mg₂Al₄Si₅O₁₈

SrCO 3Walter Schumann , Gemstones of the world (2001) More from other references

Iolite and Strontianite Chemical Formula

While comparing Iolite and Strontianite 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 Iolite and Strontianite chemical formula.

Chemical formula of Iolite- Mg₂Al₄Si₅O₁₈
Chemical formula of Strontianite- SrCO 3Walter Schumann , Gemstones of the world (2001) More from other references

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Iolite and Strontianite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Iolite and Strontianite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iolite and Strontianite Optical Properties during the identification of gemstone. Specific gravity of Iolite is 3.63-3.79 whereas that of Strontianite is 3.63-3.79.