Fuchsite and Crystal Opal Physical Properties

Fuchsite

Crystal 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

2.77-2.881.97-2.22

1 7.18

1.5 Fracture

Uneven

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

1.6 Cleavage

Perfect basal

Not Available

1.7 Mohs Hardness

2.55.5-6.5

2 10

1.8 Chemical Composition

K(Al,Cr) 3Si 3O 10(OH) 2Gemdat.org , Management Team (2012)

SiO 2 + H 2OUlrich Henn and Claudio C.

Fuchsite and Crystal Opal Chemical Formula

While comparing Fuchsite and Crystal 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 Fuchsite and Crystal Opal chemical formula.

Chemical formula of Fuchsite- K(Al,Cr) 3Si 3O 10(OH) 2Gemdat.org , Management Team (2012)
Chemical formula of Crystal Opal- SiO 2 + H 2OUlrich Henn and Claudio C.

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Fuchsite Vs Grossular

Fuchsite and Crystal Opal Specific Gravity

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