Magnesite and Amethyst Physical Properties

Magnesite

Amethyst

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Effervesces in hot HCl

insoluble in common solvents

1.3 Durability

Not Available

1.4 Specific Gravity

2.92-3.12

2.65

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

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

1.6 Cleavage

[10 1 1] perfect

Indiscernible

1.7 Mohs Hardness

3.5-4.5

1.8 Chemical Composition

MgCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

SiO₂

Magnesite and Amethyst Chemical Formula

While comparing Magnesite 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 Magnesite and Amethyst chemical formula.

Chemical formula of Magnesite- MgCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Amethyst- SiO₂

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Magnesite and Amethyst Specific Gravity

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