Serandite and Topaz Physical Properties

Serandite

Topaz

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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

3.523.49-3.57

1 7.18

1.5 Fracture

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

Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

{100} Perfect, {001} Perfect

[001] Perfect

1.7 Mohs Hardness

5-5.58

2 10

1.8 Chemical Composition

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

Al₂SiO₄(F,OH)₂

Serandite and Topaz Chemical Formula

While comparing Serandite and Topaz 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 Topaz chemical formula.

Chemical formula of Serandite- Na(Mn2+ ,Ca) 2Si 3O 8(OH)Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Topaz- Al₂SiO₄(F,OH)₂

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Serandite and Topaz Specific Gravity

Another important criteria for qualitative analysis of gemstones is Serandite and Topaz Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Serandite and Topaz Optical Properties during the identification of gemstone. Specific gravity of Serandite is 3.49-3.57 whereas that of Topaz is 3.49-3.57.