Gahnite and Scolecite Physical Properties

Gahnite

Scolecite

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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

4.00-4.622.20-2.23

1 7.18

1.5 Fracture

Conchoidal, Uneven

Irregular/uneven, UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Uneven

1.6 Cleavage

Indistinct parting on [111]

Perfect on {110} and {1 1 0}

1.7 Mohs Hardness

7.5-85-5.5

2 10

1.8 Chemical Composition

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

CaAl 2Si 3O 10 · 3H 2OUlrich Henn and Claudio C.

Gahnite and Scolecite Chemical Formula

While comparing Gahnite and Scolecite 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 Scolecite chemical formula.

Chemical formula of Gahnite- ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Scolecite- CaAl 2Si 3O 10 · 3H 2OUlrich Henn and Claudio C.

Compare Blue Gemstones

Gahnite Vs Howlite

Gahnite Vs Hydrogrossular

Gahnite Vs Indicolite Blue Tourmaline

Gahnite and Scolecite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gahnite and Scolecite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gahnite and Scolecite Optical Properties during the identification of gemstone. Specific gravity of Gahnite is 2.20-2.23 whereas that of Scolecite is 2.20-2.23.