Gahnite and Smoky Quartz Physical Properties

Gahnite

Smoky Quartz

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.00-4.622.65

1 7.18

1.5 Fracture

Conchoidal, Uneven

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

1.6 Cleavage

Indistinct parting on [111]

{0110} Indistinct

1.7 Mohs Hardness

7.5-87

2 10

1.8 Chemical Composition

ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)

SiO₂

Gahnite and Smoky Quartz Chemical Formula

While comparing Gahnite and Smoky Quartz 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 Gahnite and Smoky Quartz chemical formula.

Chemical formula of Gahnite- ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Smoky Quartz- SiO₂

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Gahnite and Smoky Quartz Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gahnite and Smoky Quartz Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gahnite and Smoky Quartz Optical Properties during the identification of gemstone. Specific gravity of Gahnite is 2.65 whereas that of Smoky Quartz is 2.65.