Andalusite and Lawsonite Physical Properties

Andalusite

Lawsonite

Add ⊕

1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.05-3.21

3.09

1.5 Fracture

Uneven, Subconchoidal, Uneven, Subconchoidal, Splintery, UnevenArthur Thomas, Gemstones (2009)

White, Yellow, Pale blue, Brittle, Uneven

1.6 Cleavage

Good on {110}, poor on {100}

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

1.7 Mohs Hardness

7.5

1.8 Chemical Composition

Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

Not Available

Andalusite and Lawsonite Chemical Formula

While comparing Andalusite and Lawsonite 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 Andalusite and Lawsonite chemical formula.

Chemical formula of Andalusite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

Compare Brown Gemstones

Andalusite Vs Augite

Andalusite Vs Baddeleyite

Andalusite Vs Baryte Barite

Andalusite and Lawsonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Andalusite and Lawsonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Andalusite and Lawsonite Optical Properties during the identification of gemstone. Specific gravity of Andalusite is 3.09 whereas that of Lawsonite is 3.09.