Kyanite and Sphalerite Physical Properties

Kyanite

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

3.53-3.653.95-4.10

1 7.18

1.5 Fracture

Splintery, Brittle, Metallic

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

[100] perfect [010] imperfect with 79° angle between

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

1.7 Mohs Hardness

4-73.5-4

2 10

1.8 Chemical Composition

Not Available

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

Kyanite and Sphalerite Chemical Formula

While comparing Kyanite 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 Kyanite and Sphalerite chemical formula.

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

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Kyanite and Sphalerite Specific Gravity

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