Sillimanite and Titanite Sphene Physical Properties

Sillimanite

Titanite Sphene

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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

3.20-3.263.52-3.54

1 7.18

1.5 Fracture

Splintery

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

1.6 Cleavage

{010} perfect

Not Available

1.7 Mohs Hardness

6-7.55-5.5

2 10

1.8 Chemical Composition

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

CaTiSiO 5Ulrich Henn and Claudio C.

Sillimanite and Titanite Sphene Chemical Formula

While comparing Sillimanite and Titanite Sphene 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 Titanite Sphene chemical formula.

Chemical formula of Sillimanite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Titanite Sphene- CaTiSiO 5Ulrich Henn and Claudio C.

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Sillimanite and Titanite Sphene Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sillimanite and Titanite Sphene Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sillimanite and Titanite Sphene Optical Properties during the identification of gemstone. Specific gravity of Sillimanite is 3.52-3.54 whereas that of Titanite Sphene is 3.52-3.54.