Gahnite and Piemontite Physical Properties

Gahnite

Piemontite

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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

4.00-4.62Not Available

1 7.18

1.5 Fracture

Conchoidal, Uneven

Uneven, Splintery

1.6 Cleavage

Indistinct parting on [111]

[001] good, [100] distinct

1.7 Mohs Hardness

7.5-86-6.5

2 10

1.8 Chemical Composition

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

Not Available

Gahnite and Piemontite Chemical Formula

While comparing Gahnite and Piemontite 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 Piemontite chemical formula.

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

Compare Blue Gemstones

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Gahnite Vs Howlite

Gahnite Vs Hydrogrossular

Gahnite and Piemontite Specific Gravity

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