Lawsonite and Foitite Physical Properties

Lawsonite

Foitite

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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

3.093.17

1 7.18

1.5 Fracture

White, Yellow, Pale blue, Brittle, Uneven

Handbook of mineralogy (2001)

1.6 Cleavage

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

None

1.7 Mohs Hardness

2 10

1.8 Chemical Composition

Not Available

Na x[Fe2+2(Al,Fe3+ )]Al 6(BO 3) 3Si 6O 18(OH) 4Anthony et al , Handbook of mineralogy (2001)

Lawsonite and Foitite Chemical Formula

While comparing Lawsonite and Foitite 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 Foitite chemical formula.

Chemical formula of Foitite- Na x[Fe2+2(Al,Fe3+ )]Al 6(BO 3) 3Si 6O 18(OH) 4Anthony et al , Handbook of mineralogy (2001)

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Lawsonite and Foitite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Lawsonite and Foitite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lawsonite and Foitite Optical Properties during the identification of gemstone. Specific gravity of Lawsonite is 3.17 whereas that of Foitite is 3.17.