Gahnite and Emerald Physical Properties

Gahnite

Emerald

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

Hard

1.4 Specific Gravity

4.00-4.622.67-2.78

1 7.18

1.5 Fracture

Conchoidal, Uneven

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

1.6 Cleavage

Indistinct parting on [111]

Imperfect on the [0001]

1.7 Mohs Hardness

7.5-87.5-8

2 10

1.8 Chemical Composition

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

Be₃Al₂SiO₆

Gahnite and Emerald Chemical Formula

While comparing Gahnite and Emerald 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 Emerald chemical formula.

Chemical formula of Gahnite- ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Emerald- Be₃Al₂SiO₆

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Gahnite Vs Indicolite Blue Tourmaline

Gahnite and Emerald Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gahnite and Emerald Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gahnite and Emerald Optical Properties during the identification of gemstone. Specific gravity of Gahnite is 2.67-2.78 whereas that of Emerald is 2.67-2.78.