Moissanite and Sillimanite Physical Properties

Moissanite

Sillimanite

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1 Physical Properties

1.1 Tenacity

Not Available

Tough

1.2 Solubility

none

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.17-3.243.20-3.26

1 7.18

1.5 Fracture

Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle

Splintery

1.6 Cleavage

(0001) indistinct

{010} perfect

1.7 Mohs Hardness

9-9.56-7.5

2 10

1.8 Chemical Composition

SiCArthur Thomas , Gemstones (2009)

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

Moissanite and Sillimanite Chemical Formula

While comparing Moissanite 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 Moissanite and Sillimanite chemical formula.

Chemical formula of Moissanite- SiCArthur Thomas , Gemstones (2009)
Chemical formula of Sillimanite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)

Compare Green Gemstones

Moissanite Vs Nephrite

Moissanite Vs Narsarsukite

Moissanite Vs Nuummite

Moissanite and Sillimanite Specific Gravity

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