Willemite and Witherite Physical Properties

Willemite

Witherite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.89-4.184.27-4.35

1 7.18

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Uneven

UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Conchoidal, Brittle

1.6 Cleavage

{0001}, {11 2 0} imperfect

{010} Distinct

1.7 Mohs Hardness

5.53-3.5

2 10

1.8 Chemical Composition

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

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

Willemite and Witherite Chemical Formula

While comparing Willemite and Witherite 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 Witherite chemical formula.

Chemical formula of Willemite- Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Witherite- BaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Willemite and Witherite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Willemite and Witherite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Willemite and Witherite Optical Properties during the identification of gemstone. Specific gravity of Willemite is 4.27-4.35 whereas that of Witherite is 4.27-4.35.