Sillimanite and Euclase Physical Properties

Sillimanite

Euclase

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1 Physical Properties

1.1 Tenacity

Tough

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.20-3.263.08-3.12

1 7.18

1.5 Fracture

Splintery

ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001), Brittle, Metallic

1.6 Cleavage

{010} perfect

{010} Perfect

1.7 Mohs Hardness

6-7.57.5

2 10

1.8 Chemical Composition

Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)

BeAlSiO 4(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Sillimanite and Euclase Chemical Formula

While comparing Sillimanite and Euclase 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 Sillimanite and Euclase chemical formula.

Chemical formula of Sillimanite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Euclase- BeAlSiO 4(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Sillimanite and Euclase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sillimanite and Euclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sillimanite and Euclase Optical Properties during the identification of gemstone. Specific gravity of Sillimanite is 3.08-3.12 whereas that of Euclase is 3.08-3.12.