Andradite Garnet and Amethyst Physical Properties

Andradite Garnet

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

3.8-3.92.65

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

None

Indiscernible

1.7 Mohs Hardness

6.5-7.57

2 10

1.8 Chemical Composition

Ca₃Fe³⁺₂Si₃O₁₂

SiO₂

Andradite Garnet and Amethyst Chemical Formula

While comparing Andradite Garnet 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 Andradite Garnet and Amethyst chemical formula.

Chemical formula of Andradite Garnet- Ca₃Fe³⁺₂Si₃O₁₂
Chemical formula of Amethyst- SiO₂

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Andradite Garnet and Amethyst Specific Gravity

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