Willemite and Catapleiite Physical Properties

Willemite

Catapleiite

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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

3.89-4.182.72

1 7.18

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Uneven

Brittle, Metallic, Brittle, Metallic

1.6 Cleavage

{0001}, {11 2 0} imperfect

{110} Perfect, {010} Perfect

1.7 Mohs Hardness

5.55-6

2 10

1.8 Chemical Composition

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

Na 2ZrSi 3O 9 · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

Willemite and Catapleiite Chemical Formula

While comparing Willemite and Catapleiite 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 Catapleiite chemical formula.

Chemical formula of Willemite- Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Catapleiite- Na 2ZrSi 3O 9 · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

Compare Red Gemstones

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Willemite Vs Garnet Color Change

Willemite and Catapleiite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Willemite and Catapleiite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Willemite and Catapleiite Optical Properties during the identification of gemstone. Specific gravity of Willemite is 2.72 whereas that of Catapleiite is 2.72.