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Rubellite
Rubellite

Hollandite
Hollandite



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Rubellite
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Hollandite

Rubellite and Hollandite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.01-3.065.05
Amber
1 7.18
1.5 Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Brittle, Metallic
1.6 Cleavage
Not Available
Distinct / Good, Prismatic
1.7 Mohs Hardness
7-7.54-6
Amber
2 10
1.8 Chemical Composition
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
Ba(Mn++++,Mn++)8O16

Rubellite and Hollandite Chemical Formula

While comparing Rubellite and Hollandite 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 Rubellite and Hollandite chemical formula.

  • Chemical formula of Rubellite- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
  • Chemical formula of Hollandite- Ba(Mn++++,Mn++)8O16

Rubellite and Hollandite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rubellite and Hollandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rubellite and Hollandite Optical Properties during the identification of gemstone. Specific gravity of Rubellite is 5.05 whereas that of Hollandite is 5.05.