Realgar and Cordierite Physical Properties

Realgar

Cordierite

Add ⊕

1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.562.57-2.66

1 7.18

1.5 Fracture

(e.g. graphite).

Subconchoidal, Conchoidal, Brittle

1.6 Cleavage

{010} Good

Fair on {100}, poor on {001} and {010}

1.7 Mohs Hardness

Not Available7-7.5

2 10

1.8 Chemical Composition

AsSMichael OâDonoghue , Gems, Sixth Edition (2006)

Mg2Al4Si5O18

Realgar and Cordierite Chemical Formula

While comparing Realgar and Cordierite 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 Realgar and Cordierite chemical formula.

Chemical formula of Realgar- AsSMichael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Cordierite- Mg2Al4Si5O18

Compare Red Gemstones

Realgar Vs Sarcopside

Realgar Vs Rutile

Realgar Vs Ruby

Realgar and Cordierite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Realgar and Cordierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Realgar and Cordierite Optical Properties during the identification of gemstone. Specific gravity of Realgar is 2.57-2.66 whereas that of Cordierite is 2.57-2.66.