Kunzite and Sillimanite Physical Properties

Kunzite

Sillimanite

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1 Physical Properties

1.1 Tenacity

Not Available

Tough

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.15-3.213.20-3.26

1 7.18

1.5 Fracture

Gemstones of the world (2001), UnevenWalter Schumann, Gemstones of the world (2001)

Splintery

1.6 Cleavage

1,2 prismatic

{010} perfect

1.7 Mohs Hardness

6-76-7.5

2 10

1.8 Chemical Composition

LiAlSi₂O₆

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

Kunzite and Sillimanite Chemical Formula

While comparing Kunzite 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 Kunzite and Sillimanite chemical formula.

Chemical formula of Kunzite- LiAlSi₂O₆
Chemical formula of Sillimanite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)

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Kunzite and Sillimanite Specific Gravity

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