Sillimanite and Bornite Physical Properties

Sillimanite

Bornite

Add ⊕

1 Physical Properties

1.1 Tenacity

Tough

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.20-3.265.06-5.08

1 7.18

1.5 Fracture

Splintery

Uneven, Subconchoidal, Conchoidal, Brittle

1.6 Cleavage

{010} perfect

Poor on [111].

1.7 Mohs Hardness

6-7.53-3.25

2 10

1.8 Chemical Composition

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

Cu5FeS4

Sillimanite and Bornite Chemical Formula

While comparing Sillimanite and Bornite 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 Bornite chemical formula.

Chemical formula of Sillimanite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Bornite- Cu5FeS4

Compare Blue Gemstones

Sillimanite Vs Strontium Titanate

Sillimanite Vs Tanzanite

Sillimanite Vs Starlite

Sillimanite and Bornite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sillimanite and Bornite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sillimanite and Bornite Optical Properties during the identification of gemstone. Specific gravity of Sillimanite is 5.06-5.08 whereas that of Bornite is 5.06-5.08.