Amethyst and Sunstone Physical Properties

Amethyst

Sunstone

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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

2.652.62-2.65

1 7.18

1.5 Fracture

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

Gemstones of the world (2001)

1.6 Cleavage

Indiscernible

001

1.7 Mohs Hardness

2 10

1.8 Chemical Composition

SiO₂

Microcline: KAlSi₃O₈ Oligoclase: (Na,Ca)Al_1-2Si_3-2O₈

Amethyst and Sunstone Chemical Formula

While comparing Amethyst and Sunstone 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 Sunstone chemical formula.

Chemical formula of Amethyst- SiO₂
Chemical formula of Sunstone- Microcline: KAlSi₃O₈ Oligoclase: (Na,Ca)Al_1-2Si_3-2O₈

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Amethyst and Sunstone Specific Gravity

Another important criteria for qualitative analysis of gemstones is Amethyst and Sunstone Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Amethyst and Sunstone Optical Properties during the identification of gemstone. Specific gravity of Amethyst is 2.62-2.65 whereas that of Sunstone is 2.62-2.65.