Lawsonite and Bustamite Physical Properties

Lawsonite

Bustamite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

Partly soluble in HCl.

1.3 Durability

Not Available

1.4 Specific Gravity

3.093.32-3.43

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}

{100} perfect; {110} and {1 1 0} good; {010} poor

1.7 Mohs Hardness

85.5-6

2 10

1.8 Chemical Composition

Not Available

(Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Lawsonite and Bustamite Chemical Formula

While comparing Lawsonite and Bustamite 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 Bustamite chemical formula.

Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Lawsonite Vs Sylvite

Lawsonite and Bustamite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Lawsonite and Bustamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lawsonite and Bustamite Optical Properties during the identification of gemstone. Specific gravity of Lawsonite is 3.32-3.43 whereas that of Bustamite is 3.32-3.43.