Realgar and Dumortierite Physical Properties

Realgar

Dumortierite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.56

3.26-3.41

1.5 Fracture

(e.g. graphite).

Fibrous, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references

1.6 Cleavage

{010} Good

Distinct on {100}, poor on {110}; parting on {001}

1.7 Mohs Hardness

Not Available

7-8.5

1.8 Chemical Composition

AsSMichael OâDonoghue , Gems, Sixth Edition (2006)

AlAl₆O₃BSi₃O₁₈

Realgar and Dumortierite Chemical Formula

While comparing Realgar and Dumortierite 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 Dumortierite chemical formula.

Chemical formula of Realgar- AsSMichael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Dumortierite- AlAl₆O₃BSi₃O₁₈

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Realgar and Dumortierite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Realgar and Dumortierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Realgar and Dumortierite Optical Properties during the identification of gemstone. Specific gravity of Realgar is 3.26-3.41 whereas that of Dumortierite is 3.26-3.41.