Iolite and Amblygonite Physical Properties

Iolite

Amblygonite

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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

2.6-2.72.98-3.10

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

3,1

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

1.7 Mohs Hardness

7-7.56

2 10

1.8 Chemical Composition

Mg₂Al₄Si₅O₁₈

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

Iolite and Amblygonite Chemical Formula

While comparing Iolite 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 Iolite and Amblygonite chemical formula.

Chemical formula of Iolite- Mg₂Al₄Si₅O₁₈
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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Iolite and Amblygonite Specific Gravity

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