Bytownite and Gahnite Physical Properties

Bytownite

Gahnite

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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

2.72-2.754.00-4.62

1 7.18

1.5 Fracture

Uneven, Uneven, Gems, Sixth Edition (2006)

Conchoidal, Uneven

1.6 Cleavage

Perfect on [001], good on [010], imperfect on [110]

Indistinct parting on [111]

1.7 Mohs Hardness

6-6.57.5-8

2 10

1.8 Chemical Composition

Ca(70-90%)Na(30-10%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

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

Bytownite and Gahnite Chemical Formula

While comparing Bytownite 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 Bytownite and Gahnite chemical formula.

Chemical formula of Bytownite- Ca(70-90%)Na(30-10%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Gahnite- ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)

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Bytownite and Gahnite Specific Gravity

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