Sheen Obsidian and Gahnite Physical Properties

Sheen Obsidian

Gahnite

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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

2.33-2.504.00-4.62

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

Conchoidal, Uneven

1.6 Cleavage

Not Available

Indistinct parting on [111]

1.7 Mohs Hardness

5-5.57.5-8

2 10

1.8 Chemical Composition

Not Available

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

Sheen Obsidian and Gahnite Chemical Formula

While comparing Sheen Obsidian and Gahnite 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 Sheen Obsidian and Gahnite chemical formula.

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

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Sheen Obsidian and Gahnite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sheen Obsidian and Gahnite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sheen Obsidian and Gahnite Optical Properties during the identification of gemstone. Specific gravity of Sheen Obsidian is 4.00-4.62 whereas that of Gahnite is 4.00-4.62.