Amethyst and Dolomite Physical Properties

Amethyst

Dolomite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

insoluble in common solvents

Poorly soluble in dilute HCl

1.3 Durability

Not Available

1.4 Specific Gravity

2.652.80-2.95

1 7.18

1.5 Fracture

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

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal

1.6 Cleavage

Indiscernible

Perfect on {10 1 1}, rhombohedral cleavage

1.7 Mohs Hardness

73.5-4

2 10

1.8 Chemical Composition

SiO₂

CaMg(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Amethyst and Dolomite Chemical Formula

While comparing Amethyst and Dolomite 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 Dolomite chemical formula.

Chemical formula of Amethyst- SiO₂
Chemical formula of Dolomite- CaMg(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Amethyst and Dolomite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Amethyst and Dolomite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Amethyst and Dolomite Optical Properties during the identification of gemstone. Specific gravity of Amethyst is 2.80-2.95 whereas that of Dolomite is 2.80-2.95.