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Forsterite
Forsterite

Hollandite
Hollandite



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Forsterite
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Hollandite

Forsterite and Hollandite Physical Properties

Physical Properties

Tenacity

-
-

Solubility

-
-

Durability

-
-

Specific Gravity

3.23-3.265.05
1 7.18
👆🏻

Fracture

Conchoidal
-

Cleavage

Perfect on {010} imperfect on {100}
Distinct / Good, Prismatic

Mohs Hardness

6.5-74-6
2 10
👆🏻

Chemical Composition

Mg 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006)
Ba(Mn++++,Mn++)8O16

Forsterite and Hollandite Chemical Formula

While comparing Forsterite 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 Forsterite and Hollandite chemical formula.

  • Chemical formula of Forsterite- Mg 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006)
  • Chemical formula of Hollandite- Ba(Mn++++,Mn++)8O16

Forsterite and Hollandite Specific Gravity

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