Amblygonite and Andalusite Physical Properties

Amblygonite

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

2.98-3.103.05-3.21

1 7.18

1.5 Fracture

Sub-Conchoidal, Irregular/uneven, Sub-Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

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

1.6 Cleavage

[100] Perfect, [110] Good, [011] Distinct

Good on {110}, poor on {100}

1.7 Mohs Hardness

67.5

2 10

1.8 Chemical Composition

(Li,Na)Al(PO 4)(F,OH)Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

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

Amblygonite and Andalusite Chemical Formula

While comparing Amblygonite 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 Amblygonite and Andalusite chemical formula.

Chemical formula of Amblygonite- (Li,Na)Al(PO 4)(F,OH)Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Chemical formula of Andalusite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

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Amblygonite and Andalusite Specific Gravity

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