Lawsonite and Corundum Physical Properties

Lawsonite

Corundum

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1 Physical Properties

1.1 Tenacity

Brittle

1.3 Solubility

Not Available

insoluble

1.5 Durability

Not Available

1.6 Specific Gravity

3.093.90-4.05

1 7.18

1.9 Fracture

White, Yellow, Pale blue, Brittle, Uneven

Uneven, Uneven, Gems, Difficult, Fibrous

1.10 Cleavage

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

None – parting in 3 directions

1.11 Mohs Hardness

2 10

1.15 Chemical Composition

Not Available

Al 2O 3Arthur Thomas , Gemstones (2009)

Lawsonite and Corundum Chemical Formula

While comparing Lawsonite and Corundum 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 Corundum chemical formula.

Chemical formula of Corundum- Al 2O 3Arthur Thomas , Gemstones (2009)

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Lawsonite and Corundum Specific Gravity

Another important criteria for qualitative analysis of gemstones is Lawsonite and Corundum Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lawsonite and Corundum Optical Properties during the identification of gemstone. Specific gravity of Lawsonite is 3.90-4.05 whereas that of Corundum is 3.90-4.05.