Lawsonite and Bytownite Physical Properties

Lawsonite

Bytownite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.092.72-2.75

1 7.18

1.5 Fracture

White, Yellow, Pale blue, Brittle, Uneven

Uneven, Uneven, Gems, Sixth Edition (2006)

1.6 Cleavage

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

Perfect on [001], good on [010], imperfect on [110]

1.7 Mohs Hardness

86-6.5

2 10

1.8 Chemical Composition

Not Available

Ca(70-90%)Na(30-10%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Lawsonite and Bytownite Chemical Formula

While comparing Lawsonite and Bytownite 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 Bytownite chemical formula.

Chemical formula of Bytownite- Ca(70-90%)Na(30-10%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Compare Blue Gemstones

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Lawsonite Vs Sylvite

Lawsonite and Bytownite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Lawsonite and Bytownite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lawsonite and Bytownite Optical Properties during the identification of gemstone. Specific gravity of Lawsonite is 2.72-2.75 whereas that of Bytownite is 2.72-2.75.