Gahnite and Andean Opal Physical Properties

Gahnite

Andean Opal

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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

4.00-4.62Not Available

1 7.18

1.5 Fracture

Conchoidal, Uneven

Not Available

1.6 Cleavage

Indistinct parting on [111]

Not Available

1.7 Mohs Hardness

7.5-8Not Available

2 10

1.8 Chemical Composition

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

Not Available

Gahnite and Andean Opal Chemical Formula

While comparing Gahnite and Andean Opal 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 Andean Opal chemical formula.

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

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Gahnite and Andean Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gahnite and Andean Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gahnite and Andean Opal Optical Properties during the identification of gemstone. Specific gravity of Gahnite is Not Available whereas that of Andean Opal is Not Available.