Stibiotantalite and Willemite Physical Properties

Stibiotantalite

Willemite

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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

Not Available3.89-4.18

1 7.18

1.5 Fracture

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

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Uneven

1.6 Cleavage

{???} Perfect

{0001}, {11 2 0} imperfect

1.7 Mohs Hardness

5.5-65.5

2 10

1.8 Chemical Composition

SbTaO 4Ulrich Henn and Claudio C.

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

Stibiotantalite and Willemite Chemical Formula

While comparing Stibiotantalite and Willemite 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 Stibiotantalite and Willemite chemical formula.

Chemical formula of Stibiotantalite- SbTaO 4Ulrich Henn and Claudio C.
Chemical formula of Willemite- Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Stibiotantalite and Willemite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Stibiotantalite and Willemite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Stibiotantalite and Willemite Optical Properties during the identification of gemstone. Specific gravity of Stibiotantalite is 3.89-4.18 whereas that of Willemite is 3.89-4.18.