Moss Agate and Andalusite Physical Properties

Moss Agate

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

2.58-2.643.05-3.21

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

Not Available

Good on {110}, poor on {100}

1.7 Mohs Hardness

6.5-77.5

2 10

1.8 Chemical Composition

SiO 2Walter Schumann , Gemstones of the world (2001)

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

Moss Agate and Andalusite Chemical Formula

While comparing Moss Agate 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 Moss Agate and Andalusite chemical formula.

Chemical formula of Moss Agate- SiO 2Walter Schumann , Gemstones of the world (2001)
Chemical formula of Andalusite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

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Moss Agate and Andalusite Specific Gravity

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