Precious Opal and Carletonite Physical Properties

Precious Opal

Carletonite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

1.98-2.252.45

1 7.18

1.5 Fracture

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

Conchoidal, Conchoidal, Brittle

1.6 Cleavage

Not Available

Perfect on {001}, good on {110}

1.7 Mohs Hardness

5-6.54-4.5

2 10

1.8 Chemical Composition

SiO 2 · nH 2OGemdat.org , Management Team (2012)

KNa 4Ca 4Si 8O 18(CO 3) 4(OH,F) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

Precious Opal and Carletonite Chemical Formula

While comparing Precious Opal and Carletonite 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 Precious Opal and Carletonite chemical formula.

Chemical formula of Precious Opal- SiO 2 · nH 2OGemdat.org , Management Team (2012)
Chemical formula of Carletonite- KNa 4Ca 4Si 8O 18(CO 3) 4(OH,F) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

Compare Blue Gemstones

Precious Opal Vs Sapphire

Precious Opal Vs Sard

Precious Opal Vs Sardonyx

Precious Opal and Carletonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Precious Opal and Carletonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Precious Opal and Carletonite Optical Properties during the identification of gemstone. Specific gravity of Precious Opal is 2.45 whereas that of Carletonite is 2.45.