Gahnite and Feldspar Physical Properties

Gahnite

Feldspar

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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

4.00-4.622.56-2.75

1 7.18

1.5 Fracture

Conchoidal, Uneven

Uneven, Conchoidal, Uneven, Conchoidal, Gemstones of the world (2001)

1.6 Cleavage

Indistinct parting on [111]

two or three

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 Feldspar Chemical Formula

While comparing Gahnite and Feldspar 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 Feldspar chemical formula.

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

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Gahnite and Feldspar Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gahnite and Feldspar Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gahnite and Feldspar Optical Properties during the identification of gemstone. Specific gravity of Gahnite is 2.56-2.75 whereas that of Feldspar is 2.56-2.75.