Amethyst and Amblygonite Physical Properties

Amethyst

Amblygonite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

insoluble in common solvents

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.652.98-3.10

1 7.18

1.5 Fracture

Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)

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

1.6 Cleavage

Indiscernible

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

1.7 Mohs Hardness

2 10

1.8 Chemical Composition

SiO₂

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

Amethyst and Amblygonite Chemical Formula

While comparing Amethyst and Amblygonite 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 Amethyst and Amblygonite chemical formula.

Chemical formula of Amethyst- SiO₂
Chemical formula of Amblygonite- (Li,Na)Al(PO 4)(F,OH)Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

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Amethyst and Amblygonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Amethyst and Amblygonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Amethyst and Amblygonite Optical Properties during the identification of gemstone. Specific gravity of Amethyst is 2.98-3.10 whereas that of Amblygonite is 2.98-3.10.