Smoky Quartz and Iolite Physical Properties

Smoky Quartz

Iolite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.65

2.6-2.7

1.5 Fracture

Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)

Not Available

1.6 Cleavage

{0110} Indistinct

3,1

1.7 Mohs Hardness

7-7.5

1.8 Chemical Composition

SiO₂

Mg₂Al₄Si₅O₁₈

Smoky Quartz and Iolite Chemical Formula

While comparing Smoky Quartz 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 Smoky Quartz and Iolite chemical formula.

Chemical formula of Smoky Quartz- SiO₂
Chemical formula of Iolite- Mg₂Al₄Si₅O₁₈

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Smoky Quartz and Iolite Specific Gravity

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