Kunzite and Black Opal Physical Properties

Kunzite

Black Opal

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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

3.15-3.21

1.97-2.22

1.5 Fracture

Gemstones of the world (2001), UnevenWalter Schumann, Gemstones of the world (2001)

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

1.6 Cleavage

1,2 prismatic

Not Available

1.7 Mohs Hardness

6-7

6-6.5

1.8 Chemical Composition

LiAlSi₂O₆

SiO 2 + H 2OUlrich Henn and Claudio C.

Kunzite and Black Opal Chemical Formula

While comparing Kunzite 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 Kunzite and Black Opal chemical formula.

Chemical formula of Kunzite- LiAlSi₂O₆
Chemical formula of Black Opal- SiO 2 + H 2OUlrich Henn and Claudio C.

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Kunzite and Black Opal Specific Gravity

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