Wavellite and Amethyst Physical Properties

Wavellite

Amethyst

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

insoluble

insoluble in common solvents

1.3 Durability

Not Available

1.4 Specific Gravity

2.362.65

1 7.18

1.5 Fracture

Uneven, Subconchoidal, UnevenArthur Thomas, Fibrous

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

1.6 Cleavage

[110] perfect, [101] good, [010] distinct

Indiscernible

1.7 Mohs Hardness

3.5-47

2 10

1.8 Chemical Composition

Al 3(PO 4) 2(OH,F) 3 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

SiO₂

Wavellite and Amethyst Chemical Formula

While comparing Wavellite 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 Wavellite and Amethyst chemical formula.

Chemical formula of Wavellite- Al 3(PO 4) 2(OH,F) 3 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Amethyst- SiO₂

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Wavellite and Amethyst Specific Gravity

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