Amblygonite and Opal Physical Properties

Amblygonite

Opal

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1 Physical Properties

1.1 Tenacity

Not Available

BrittleWalter Schumann

1.2 Solubility

Not Available

hot salt water

1.3 Durability

Not Available

1.4 Specific Gravity

2.98-3.101.98-2.25

1 7.18

1.5 Fracture

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

Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Brittle

1.6 Cleavage

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

None

1.7 Mohs Hardness

65-6.5

2 10

1.8 Chemical Composition

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

SiO₂ · nH₂O

Amblygonite and Opal Chemical Formula

While comparing Amblygonite and Opal 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 Opal 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 Opal- SiO₂ · nH₂O

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Amblygonite and Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Amblygonite and Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Amblygonite and Opal Optical Properties during the identification of gemstone. Specific gravity of Amblygonite is 1.98-2.25 whereas that of Opal is 1.98-2.25.