Pearl and Gahnite Physical Properties

Pearl

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

2.60-2.854.00-4.62

1 7.18

1.5 Fracture

Gemstones of the world (2001), UnevenWalter Schumann, Gemstones of the world (2001)

Conchoidal, Uneven

1.6 Cleavage

none

Indistinct parting on [111]

1.7 Mohs Hardness

2.5-4.57.5-8

2 10

1.8 Chemical Composition

Not Available

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

Pearl and Gahnite Chemical Formula

While comparing Pearl 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 Pearl and Gahnite chemical formula.

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

Compare Blue Gemstones

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Pearl Vs Prase Opal

Pearl and Gahnite Specific Gravity

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