Amethyst and Serandite Physical Properties

Amethyst

Serandite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

insoluble in common solvents

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.653.52

1 7.18

1.5 Fracture

Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)

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

1.6 Cleavage

Indiscernible

{100} Perfect, {001} Perfect

1.7 Mohs Hardness

75-5.5

2 10

1.8 Chemical Composition

SiO₂

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

Amethyst and Serandite Chemical Formula

While comparing Amethyst 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 Amethyst and Serandite chemical formula.

Chemical formula of Amethyst- SiO₂
Chemical formula of Serandite- Na(Mn2+ ,Ca) 2Si 3O 8(OH)Michael OâDonoghue , Gems, Sixth Edition (2006)

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Amethyst and Serandite Specific Gravity

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