Amethyst and Azurite Physical Properties

Amethyst

Azurite

Add ⊕

1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

insoluble in common solvents

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.653.70-3.90

1 7.18

1.5 Fracture

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

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal

1.6 Cleavage

Indiscernible

Perfect on {011}, fair on {100}, poor on {110}

1.7 Mohs Hardness

73.5-4

2 10

1.8 Chemical Composition

SiO₂

Cu 3(OH) 2(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Amethyst and Azurite Chemical Formula

While comparing Amethyst and Azurite 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 Amethyst and Azurite chemical formula.

Chemical formula of Amethyst- SiO₂
Chemical formula of Azurite- Cu 3(OH) 2(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Semi Precious Gemstones

Amethyst Vs Moonstone

Amethyst Vs Jade

Amethyst Vs Jasper

Amethyst and Azurite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Amethyst and Azurite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Amethyst and Azurite Optical Properties during the identification of gemstone. Specific gravity of Amethyst is 3.70-3.90 whereas that of Azurite is 3.70-3.90.