Hollandite and Crystal Opal Physical Properties

Hollandite

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

5.051.97-2.22

1 7.18

1.5 Fracture

Brittle, Metallic

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

1.6 Cleavage

Distinct / Good, Prismatic

Not Available

1.7 Mohs Hardness

4-65.5-6.5

2 10

1.8 Chemical Composition

Ba(Mn++++,Mn++)8O16

SiO 2 + H 2OUlrich Henn and Claudio C.

Hollandite and Crystal Opal Chemical Formula

While comparing Hollandite 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 Hollandite and Crystal Opal chemical formula.

Chemical formula of Hollandite- Ba(Mn++++,Mn++)8O16
Chemical formula of Crystal Opal- SiO 2 + H 2OUlrich Henn and Claudio C.

Compare Grey Gemstones

Hollandite Vs Musgravite

Hollandite Vs Larvikite

Hollandite Vs Falcons Eye

Hollandite and Crystal Opal Specific Gravity

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