Gahnite and Esperite Physical Properties

Gahnite

Esperite

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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

4.00-4.624.28-4.42

1 7.18

1.5 Fracture

Conchoidal, Uneven

Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Metallic

1.6 Cleavage

Indistinct parting on [111]

Distinct on [010] and [100] poor on [101]

1.7 Mohs Hardness

7.5-85-5.5

2 10

1.8 Chemical Composition

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

PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)

Gahnite and Esperite Chemical Formula

While comparing Gahnite and Esperite 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 Esperite chemical formula.

Chemical formula of Gahnite- ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Esperite- PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)

Compare Blue Gemstones

Gahnite Vs Howlite

Gahnite Vs Hydrogrossular

Gahnite Vs Indicolite Blue Tourmaline

Gahnite and Esperite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gahnite and Esperite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gahnite and Esperite Optical Properties during the identification of gemstone. Specific gravity of Gahnite is 4.28-4.42 whereas that of Esperite is 4.28-4.42.