Serandite and Amethyst Physical Properties

Serandite

Amethyst

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

insoluble in common solvents

1.3 Durability

Not Available

1.4 Specific Gravity

3.522.65

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

{100} Perfect, {001} Perfect

Indiscernible

1.7 Mohs Hardness

5-5.57

2 10

1.8 Chemical Composition

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

SiO₂

Serandite and Amethyst Chemical Formula

While comparing Serandite and Amethyst 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 Amethyst chemical formula.

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

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Serandite and Amethyst Specific Gravity

Another important criteria for qualitative analysis of gemstones is Serandite and Amethyst Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Serandite and Amethyst Optical Properties during the identification of gemstone. Specific gravity of Serandite is 2.65 whereas that of Amethyst is 2.65.