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Prehnite
Prehnite

Hackmanite
Hackmanite



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Prehnite
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Hackmanite

Prehnite and Hackmanite Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.80-2.952.27-2.33
Amber
1 7.18
1.5 Fracture
Uneven, Yellow, White, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)
1.6 Cleavage
Distinct on [001]
Not Available
1.7 Mohs Hardness
6-6.55.5-6
Amber
2 10
1.8 Chemical Composition
Ca2Al2Si3O12(OH)
Na 8Al 6Si 6O 24Cl 2Michael O’Donoghue , Gems, Sixth Edition (2006)

Prehnite and Hackmanite Chemical Formula

While comparing Prehnite and Hackmanite 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 Prehnite and Hackmanite chemical formula.

  • Chemical formula of Prehnite- Ca2Al2Si3O12(OH)
  • Chemical formula of Hackmanite- Na 8Al 6Si 6O 24Cl 2Michael O’Donoghue , Gems, Sixth Edition (2006)

Prehnite and Hackmanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Prehnite and Hackmanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Prehnite and Hackmanite Optical Properties during the identification of gemstone. Specific gravity of Prehnite is 2.27-2.33 whereas that of Hackmanite is 2.27-2.33.