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Almandine
Almandine

Hollandite
Hollandite



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Almandine
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Almandine 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
3.95-4.30
5.05
1.5 Fracture
Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Brittle, Metallic
1.6 Cleavage
none
Distinct / Good, Prismatic
1.7 Mohs Hardness
7-7.5
4-6
1.8 Chemical Composition
Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Ba(Mn++++,Mn++)8O16

Almandine and Hollandite Chemical Formula

While comparing Almandine 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 Almandine and Hollandite chemical formula.

  • Chemical formula of Almandine- Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
  • Chemical formula of Hollandite- Ba(Mn++++,Mn++)8O16

Almandine and Hollandite Specific Gravity

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

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