Xonotlite and Amethyst Physical Properties

Xonotlite

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

2.71-2.72

2.65

1.5 Fracture

Handbook of mineralogy (2001), Difficult, Fibrous

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

1.6 Cleavage

{???} Good

Indiscernible

1.7 Mohs Hardness

6-6.5

1.8 Chemical Composition

Ca 6Si 6O 17(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

SiO₂

Xonotlite and Amethyst Chemical Formula

While comparing Xonotlite 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 Xonotlite and Amethyst chemical formula.

Chemical formula of Xonotlite- Ca 6Si 6O 17(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Amethyst- SiO₂

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Xonotlite and Amethyst Specific Gravity

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