Piemontite and Wavellite Physical Properties

Piemontite

Wavellite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

Brittle

-9999

Uneven, Splintery

[001] good, [100] distinct

6-6.5

Ca2Al3(SiO4)(Si2O7)O(OH)

insoluble

2.36

Uneven, Subconchoidal, Fibrous

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

3.5-4

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

Piemontite and Wavellite Chemical Formula

While comparing Piemontite and Wavellite 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 Piemontite and Wavellite chemical formula.

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Piemontite and Wavellite Specific Gravity

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