Willemite and Diaspore Physical Properties

Willemite

Diaspore

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1 Physical Properties

1.1 Tenacity

Not Available

Very brittle

1.2 Solubility

Not Available

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.89-4.183.30-3.40

1 7.18

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Uneven

Conchoidal, Brittle, Conchoidal

1.6 Cleavage

{0001}, {11 2 0} imperfect

{010} perfect, {110} distinct, {100} in traces

1.7 Mohs Hardness

5.56.5-7

2 10

1.8 Chemical Composition

Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references

Willemite and Diaspore Chemical Formula

While comparing Willemite and Diaspore 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 Willemite and Diaspore chemical formula.

Chemical formula of Willemite- Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Diaspore- AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references

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Willemite and Diaspore Specific Gravity

Another important criteria for qualitative analysis of gemstones is Willemite and Diaspore Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Willemite and Diaspore Optical Properties during the identification of gemstone. Specific gravity of Willemite is 3.30-3.40 whereas that of Diaspore is 3.30-3.40.