Almandine Garnet and Andalusite Physical Properties

Almandine Garnet

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

4.33.05-3.21

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

None.

Good on {110}, poor on {100}

1.7 Mohs Hardness

7.5-8.57.5

2 10

1.8 Chemical Composition

Fe₃Al₂Si₃O₁₂

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

Almandine Garnet and Andalusite Chemical Formula

While comparing Almandine Garnet 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 Almandine Garnet and Andalusite chemical formula.

Chemical formula of Almandine Garnet- Fe₃Al₂Si₃O₁₂
Chemical formula of Andalusite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

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Almandine Garnet and Andalusite Specific Gravity

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