Sapphire and Serandite Physical Properties

Sapphire

Serandite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

insoluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.95-4.033.52

1 7.18

1.5 Fracture

Uneven, Uneven, Gems, Sixth Edition (2006)

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

1.6 Cleavage

None, but may exhibit parting

{100} Perfect, {001} Perfect

1.7 Mohs Hardness

95-5.5

2 10

1.8 Chemical Composition

Al ₂ O ₃

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

Sapphire and Serandite Chemical Formula

While comparing Sapphire and Serandite 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 Sapphire and Serandite chemical formula.

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

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Sapphire and Serandite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sapphire and Serandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sapphire and Serandite Optical Properties during the identification of gemstone. Specific gravity of Sapphire is 3.52 whereas that of Serandite is 3.52.