Grandidierite and Sphalerite Physical Properties

Grandidierite

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

2.85-3.003.95-4.10

1 7.18

1.5 Fracture

Brittle, UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven

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

Perfect

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

1.7 Mohs Hardness

7.53.5-4

2 10

1.8 Chemical Composition

(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.

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

Grandidierite and Sphalerite Chemical Formula

While comparing Grandidierite 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 Grandidierite and Sphalerite chemical formula.

Chemical formula of Grandidierite- (Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
Chemical formula of Sphalerite- (Zn,Fe)SMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Grandidierite and Sphalerite Specific Gravity

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