Ammolite and Andalusite Physical Properties

Ammolite

Andalusite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.75-2.803.05-3.21

1 7.18

1.5 Fracture

Uneven, Granular

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

1.6 Cleavage

no true cleavage

Good on {110}, poor on {100}

1.7 Mohs Hardness

47.5

2 10

1.8 Chemical Composition

Not Available

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

Ammolite and Andalusite Chemical Formula

While comparing Ammolite and Andalusite 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 Ammolite and Andalusite chemical formula.

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

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Ammolite and Andalusite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ammolite and Andalusite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ammolite and Andalusite Optical Properties during the identification of gemstone. Specific gravity of Ammolite is 3.05-3.21 whereas that of Andalusite is 3.05-3.21.