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Nifontovite
Nifontovite

Sillimanite
Sillimanite



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Nifontovite
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Sillimanite

Nifontovite and Sillimanite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Tough
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.35-2.363.20-3.26
Amber
1 7.18
1.5 Fracture
Not Available
Splintery
1.6 Cleavage
{???} Indistinct
{010} perfect
1.7 Mohs Hardness
3.5-56-7.5
Amber
2 10
1.8 Chemical Composition
Ca 3B 6O 6(OH) 12 · 2H 2OAnthony et al , Handbook of Mineralogy (2001)
Al 2SiO 5Michael O’Donoghue , Gems, Sixth Edition (2006)

Nifontovite and Sillimanite Chemical Formula

While comparing Nifontovite and Sillimanite 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 Nifontovite and Sillimanite chemical formula.

  • Chemical formula of Nifontovite- Ca 3B 6O 6(OH) 12 · 2H 2OAnthony et al , Handbook of Mineralogy (2001)
  • Chemical formula of Sillimanite- Al 2SiO 5Michael O’Donoghue , Gems, Sixth Edition (2006)

Nifontovite and Sillimanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Nifontovite and Sillimanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Nifontovite and Sillimanite Optical Properties during the identification of gemstone. Specific gravity of Nifontovite is 3.20-3.26 whereas that of Sillimanite is 3.20-3.26.