Andalusite and Xonotlite Physical Properties

Andalusite

Xonotlite

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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

3.05-3.212.71-2.72

1 7.18

1.5 Fracture

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

Handbook of mineralogy (2001), Difficult, Fibrous

1.6 Cleavage

Good on {110}, poor on {100}

{???} Good

1.7 Mohs Hardness

7.56-6.5

2 10

1.8 Chemical Composition

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

Ca 6Si 6O 17(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Andalusite and Xonotlite Chemical Formula

While comparing Andalusite and Xonotlite 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 Xonotlite chemical formula.

Chemical formula of Andalusite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Chemical formula of Xonotlite- Ca 6Si 6O 17(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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Andalusite and Xonotlite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Andalusite and Xonotlite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Andalusite and Xonotlite Optical Properties during the identification of gemstone. Specific gravity of Andalusite is 2.71-2.72 whereas that of Xonotlite is 2.71-2.72.