Sphalerite and Coral Physical Properties

Sphalerite

Coral

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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

3.95-4.102.60-2.70

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

Irregular, Irregular, Gemstones of the world (2001)

1.6 Cleavage

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

Not Available

1.7 Mohs Hardness

3.5-43-4

2 10

1.8 Chemical Composition

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

CaCO 3Ulrich Henn and Claudio C.

Sphalerite and Coral Chemical Formula

While comparing Sphalerite and Coral 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 Coral chemical formula.

Chemical formula of Sphalerite- (Zn,Fe)SMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Coral- CaCO 3Ulrich Henn and Claudio C.

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Sphalerite and Coral Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sphalerite and Coral Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sphalerite and Coral Optical Properties during the identification of gemstone. Specific gravity of Sphalerite is 2.60-2.70 whereas that of Coral is 2.60-2.70.