Tinaksite and Black Opal Physical Properties

Tinaksite

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

2.821.97-2.22

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

Perfect in one direction, indistinct in one direction

Not Available

1.7 Mohs Hardness

66-6.5

2 10

1.8 Chemical Composition

Not Available

SiO 2 + H 2OUlrich Henn and Claudio C.

Tinaksite and Black Opal Chemical Formula

While comparing Tinaksite 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 Tinaksite and Black Opal chemical formula.

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

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Tinaksite and Black Opal Specific Gravity

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