Xonotlite and Black Opal Physical Properties

Xonotlite

Black Opal

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1 Physical Properties

1.1 Tenacity

Not Available

1.3 Solubility

Not Available

1.5 Durability

Not Available

1.8 Specific Gravity

2.71-2.721.97-2.22

1 7.18

1.16 Fracture

Handbook of mineralogy (2001), Difficult, Fibrous

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

1.17 Cleavage

{???} Good

Not Available

1.18 Mohs Hardness

6-6.56-6.5

2 10

1.19 Chemical Composition

Ca 6Si 6O 17(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

SiO 2 + H 2OUlrich Henn and Claudio C.

Xonotlite and Black Opal Chemical Formula

While comparing Xonotlite 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 Xonotlite and Black Opal chemical formula.

Chemical formula of Xonotlite- Ca 6Si 6O 17(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Black Opal- SiO 2 + H 2OUlrich Henn and Claudio C.

Compare White Gemstones

Xonotlite Vs Kurnakovite

Xonotlite Vs Leucophanite

Xonotlite Vs Cancrinite

Xonotlite and Black Opal Specific Gravity

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