Gahnite and Edenite Physical Properties

Gahnite

Edenite

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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

4.00-4.623.05-3.37

1 7.18

1.5 Fracture

Conchoidal, Uneven

Conchoidal, Brittle, Conchoidal

1.6 Cleavage

Indistinct parting on [111]

Good on (110)

1.7 Mohs Hardness

7.5-85-6

2 10

1.8 Chemical Composition

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

NaCa2Mg5Si7AlO22(OH)2

Gahnite and Edenite Chemical Formula

While comparing Gahnite and Edenite 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 Edenite chemical formula.

Chemical formula of Gahnite- ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Edenite- NaCa2Mg5Si7AlO22(OH)2

Compare Blue Gemstones

Gahnite Vs Indicolite Blue Tourmaline

Gahnite Vs Hydrogrossular

Gahnite Vs Howlite

Gahnite and Edenite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gahnite and Edenite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gahnite and Edenite Optical Properties during the identification of gemstone. Specific gravity of Gahnite is 3.05-3.37 whereas that of Edenite is 3.05-3.37.