Willemite and Hurlbutite Physical Properties

Willemite

Hurlbutite

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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

3.89-4.182.90

1 7.18

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Uneven

ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

1.6 Cleavage

{0001}, {11 2 0} imperfect

None

1.7 Mohs Hardness

5.56

2 10

1.8 Chemical Composition

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

CaBe 2(PO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Willemite and Hurlbutite Chemical Formula

While comparing Willemite and Hurlbutite 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 Hurlbutite chemical formula.

Chemical formula of Willemite- Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Hurlbutite- CaBe 2(PO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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Willemite and Hurlbutite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Willemite and Hurlbutite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Willemite and Hurlbutite Optical Properties during the identification of gemstone. Specific gravity of Willemite is 2.90 whereas that of Hurlbutite is 2.90.