Sphalerite and Poudretteite Physical Properties

Sphalerite

Poudretteite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.95-4.102.51-2.53

1 7.18

1.5 Fracture

UnevenWalter Schumann, Gemstones of the world (2001) More from other references, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Uneven

Conchoidal, Splintery

1.6 Cleavage

{110} Perfect, {110} Perfect, {110} Perfect

None

1.7 Mohs Hardness

3.5-45

2 10

1.8 Chemical Composition

(Zn,Fe)SMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

KNa 2B 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006)

Sphalerite and Poudretteite Chemical Formula

While comparing Sphalerite and Poudretteite 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 Sphalerite and Poudretteite chemical formula.

Chemical formula of Sphalerite- (Zn,Fe)SMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Poudretteite- KNa 2B 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006)

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Sphalerite and Poudretteite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sphalerite and Poudretteite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sphalerite and Poudretteite Optical Properties during the identification of gemstone. Specific gravity of Sphalerite is 2.51-2.53 whereas that of Poudretteite is 2.51-2.53.