Lawsonite and Sugilite Physical Properties

Lawsonite

Sugilite

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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

3.092.69-2.79

1 7.18

1.5 Fracture

White, Yellow, Pale blue, Brittle, Uneven

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

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

Poor on {0001}

1.7 Mohs Hardness

85.5-6.5

2 10

1.8 Chemical Composition

Not Available

KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Lawsonite and Sugilite Chemical Formula

While comparing Lawsonite and Sugilite 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 Sugilite chemical formula.

Chemical formula of Sugilite- KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Blue Gemstones

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Lawsonite Vs Paraiba

Lawsonite and Sugilite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Lawsonite and Sugilite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lawsonite and Sugilite Optical Properties during the identification of gemstone. Specific gravity of Lawsonite is 2.69-2.79 whereas that of Sugilite is 2.69-2.79.