Serandite and Gahnite Physical Properties

Serandite

Gahnite

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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

3.524.00-4.62

1 7.18

1.5 Fracture

UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001)

Conchoidal, Uneven

1.6 Cleavage

{100} Perfect, {001} Perfect

Indistinct parting on [111]

1.7 Mohs Hardness

5-5.57.5-8

2 10

1.8 Chemical Composition

Na(Mn2+ ,Ca) 2Si 3O 8(OH)Michael OâDonoghue , Gems, Sixth Edition (2006)

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

Serandite and Gahnite Chemical Formula

While comparing Serandite and Gahnite 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 Serandite and Gahnite chemical formula.

Chemical formula of Serandite- Na(Mn2+ ,Ca) 2Si 3O 8(OH)Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Gahnite- ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)

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Serandite and Gahnite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Serandite and Gahnite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Serandite and Gahnite Optical Properties during the identification of gemstone. Specific gravity of Serandite is 4.00-4.62 whereas that of Gahnite is 4.00-4.62.