Pyrophyllite and Sphalerite Physical Properties

Pyrophyllite

Sphalerite

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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

2.65-2.903.95-4.10

1 7.18

1.5 Fracture

Gemstones (2009), Flexible Flexible fragments.

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

1.6 Cleavage

{001} Perfect

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

1.7 Mohs Hardness

Not Available3.5-4

2 10

1.8 Chemical Composition

Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Pyrophyllite and Sphalerite Chemical Formula

While comparing Pyrophyllite and Sphalerite 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 Pyrophyllite and Sphalerite chemical formula.

Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Sphalerite- (Zn,Fe)SMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Pyrophyllite and Sphalerite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyrophyllite and Sphalerite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrophyllite and Sphalerite Optical Properties during the identification of gemstone. Specific gravity of Pyrophyllite is 3.95-4.10 whereas that of Sphalerite is 3.95-4.10.