Datolite and Black Opal Physical Properties

Datolite

Black Opal

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.90-3.00

1.97-2.22

1.5 Fracture

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Metallic

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

None

Not Available

1.7 Mohs Hardness

5-5.5

6-6.5

1.8 Chemical Composition

CaBSiO 4(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

SiO 2 + H 2OUlrich Henn and Claudio C.

Datolite and Black Opal Chemical Formula

While comparing Datolite and Black 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 Datolite and Black Opal chemical formula.

Chemical formula of Datolite- CaBSiO 4(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Black Opal- SiO 2 + H 2OUlrich Henn and Claudio C.

Compare Green Gemstones

Datolite Vs Emerald

Datolite Vs Elaeolite

Datolite Vs Euclase

Datolite and Black Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Datolite and Black Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Datolite and Black Opal Optical Properties during the identification of gemstone. Specific gravity of Datolite is 1.97-2.22 whereas that of Black Opal is 1.97-2.22.