Gahnite and Gyrolite Physical Properties

Gahnite

Gyrolite

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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

4.00-4.622.48

1 7.18

1.5 Fracture

Conchoidal, Uneven

Brittle, Uneven, Brittle, Uneven

1.6 Cleavage

Indistinct parting on [111]

Perfect on {001}

1.7 Mohs Hardness

7.5-82

2 10

1.8 Chemical Composition

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

NaCa16Si23AlO60(OH)8•64(H2O)

Gahnite and Gyrolite Chemical Formula

While comparing Gahnite and Gyrolite 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 Gyrolite chemical formula.

Chemical formula of Gahnite- ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Gyrolite- NaCa16Si23AlO60(OH)8•64(H2O)

Compare Blue Gemstones

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Gahnite and Gyrolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gahnite and Gyrolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gahnite and Gyrolite Optical Properties during the identification of gemstone. Specific gravity of Gahnite is 2.48 whereas that of Gyrolite is 2.48.