Amethyst and Zincite Physical Properties

Amethyst

Zincite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

insoluble in common solvents

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.655.50-5.90

1 7.18

1.5 Fracture

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

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

Indiscernible

On {10 1 0}, perfect; parting on {000 1 }

1.7 Mohs Hardness

2 10

1.8 Chemical Composition

SiO₂

(Zn,Mn2+ )OMichael OâDonoghue , Gems, Sixth Edition (2006)

Amethyst and Zincite Chemical Formula

While comparing Amethyst and Zincite 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 Zincite chemical formula.

Chemical formula of Amethyst- SiO₂
Chemical formula of Zincite- (Zn,Mn2+ )OMichael OâDonoghue , Gems, Sixth Edition (2006)

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Amethyst and Zincite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Amethyst and Zincite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Amethyst and Zincite Optical Properties during the identification of gemstone. Specific gravity of Amethyst is 5.50-5.90 whereas that of Zincite is 5.50-5.90.