Andalusite and Microcline Physical Properties

Andalusite

Microcline

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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

3.05-3.212.55-2.63

1 7.18

1.5 Fracture

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

Uneven, Uneven, Gems

1.6 Cleavage

Good on {110}, poor on {100}

{001} Perfect, {010} 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

KAlSi 3O 8Arthur Thomas , Gemstones (2009)

Andalusite and Microcline Chemical Formula

While comparing Andalusite and Microcline 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 Microcline chemical formula.

Chemical formula of Andalusite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Chemical formula of Microcline- KAlSi 3O 8Arthur Thomas , Gemstones (2009)

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Andalusite and Microcline Specific Gravity

Another important criteria for qualitative analysis of gemstones is Andalusite and Microcline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Andalusite and Microcline Optical Properties during the identification of gemstone. Specific gravity of Andalusite is 2.55-2.63 whereas that of Microcline is 2.55-2.63.