Lawsonite and Gahnite Physical Properties

Lawsonite

Gahnite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.094.00-4.62

1 7.18

1.5 Fracture

White, Yellow, Pale blue, Brittle, Uneven

Conchoidal, Uneven

1.6 Cleavage

Perfect on {100} and {010}, imperfect on {101}

Indistinct parting on [111]

1.7 Mohs Hardness

87.5-8

2 10

1.8 Chemical Composition

Not Available

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

Lawsonite and Gahnite Chemical Formula

While comparing Lawsonite 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 Lawsonite and Gahnite chemical formula.

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

Compare Blue Gemstones

Lawsonite Vs Sylvite

Lawsonite Vs Sulfur

Lawsonite Vs Paraiba

Lawsonite and Gahnite Specific Gravity

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