Feldspar and Gahnite Physical Properties

Feldspar

Gahnite

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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

2.56-2.754.00-4.62

1 7.18

1.5 Fracture

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

Conchoidal, Uneven

1.6 Cleavage

two or three

Indistinct parting on [111]

1.7 Mohs Hardness

6-6.57.5-8

2 10

1.8 Chemical Composition

Not Available

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

Feldspar and Gahnite Chemical Formula

While comparing Feldspar and Gahnite 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 Feldspar and Gahnite chemical formula.

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

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Feldspar and Gahnite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Feldspar and Gahnite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Feldspar and Gahnite Optical Properties during the identification of gemstone. Specific gravity of Feldspar is 4.00-4.62 whereas that of Gahnite is 4.00-4.62.