Gahnite and Dioptase Physical Properties

Gahnite

Dioptase

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

4.00-4.623.25-3.35

1 7.18

1.5 Fracture

Conchoidal, Uneven

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

1.6 Cleavage

Indistinct parting on [111]

Perfect in three directions

1.7 Mohs Hardness

7.5-85

2 10

1.8 Chemical Composition

ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)

CuSiO 2(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Gahnite and Dioptase Chemical Formula

While comparing Gahnite and Dioptase 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 Gahnite and Dioptase chemical formula.

Chemical formula of Gahnite- ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Dioptase- CuSiO 2(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Blue Gemstones

Gahnite Vs Hydrogrossular

Gahnite Vs Indicolite Blue Tourmaline

Gahnite Vs Howlite

Gahnite and Dioptase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gahnite and Dioptase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gahnite and Dioptase Optical Properties during the identification of gemstone. Specific gravity of Gahnite is 3.25-3.35 whereas that of Dioptase is 3.25-3.35.