Rosasite and Andalusite Physical Properties

Rosasite

Andalusite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Effervesces in cold

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4-4.23.05-3.21

1 7.18

1.5 Fracture

Splintery

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

1.6 Cleavage

Perfect on {100} and {010}

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

Rosasite and Andalusite Chemical Formula

While comparing Rosasite 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 Rosasite and Andalusite chemical formula.

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

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Rosasite and Andalusite Specific Gravity

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