Brookite and Sphalerite Physical Properties

Brookite

Sphalerite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.87-4.143.95-4.10

1 7.18

1.5 Fracture

Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

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

Poor on {120}, in traces on {001}

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

1.7 Mohs Hardness

5.5-63.5-4

2 10

1.8 Chemical Composition

TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Brookite and Sphalerite Chemical Formula

While comparing Brookite 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 Brookite and Sphalerite chemical formula.

Chemical formula of Brookite- TiO 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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Brookite and Sphalerite Specific Gravity

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