Bornite and Ettringite Physical Properties

Bornite

Ettringite

Add ⊕

1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

Partially soluble in water

1.3 Durability

Not Available

1.4 Specific Gravity

5.06-5.081.77

1 7.18

1.5 Fracture

Uneven, Subconchoidal, Conchoidal, Brittle

Not Available

1.6 Cleavage

Poor on [111].

Perfect on {10 1 0}

1.7 Mohs Hardness

3-3.252-2.5

2 10

1.8 Chemical Composition

Cu5FeS4

Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

Bornite and Ettringite Chemical Formula

While comparing Bornite and Ettringite 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 Bornite and Ettringite chemical formula.

Chemical formula of Bornite- Cu5FeS4
Chemical formula of Ettringite- Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

Compare Red Gemstones

Bornite Vs Langbeinite

Bornite Vs Nickeline

Bornite Vs Phlogopite

Bornite and Ettringite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bornite and Ettringite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bornite and Ettringite Optical Properties during the identification of gemstone. Specific gravity of Bornite is 1.77 whereas that of Ettringite is 1.77.