Sphalerite and Topaz Physical Properties

Sphalerite

Topaz

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

3.95-4.103.49-3.57

1 7.18

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Fracture

Uneven

Subconchoidal, Uneven, Conchoidal

Cleavage

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

[001] Perfect

Mohs Hardness

3.5-48

2 10

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Chemical Composition

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

Al₂SiO₄(F,OH)₂

Sphalerite and Topaz Chemical Formula

While comparing Sphalerite and Topaz 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 Topaz chemical formula.

Chemical formula of Sphalerite- (Zn,Fe)SMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Topaz- Al₂SiO₄(F,OH)₂

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Sphalerite and Topaz Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sphalerite and Topaz Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sphalerite and Topaz Optical Properties during the identification of gemstone. Specific gravity of Sphalerite is 3.49-3.57 whereas that of Topaz is 3.49-3.57.