Sphalerite and Kyanite Physical Properties

Sphalerite

Kyanite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.95-4.103.53-3.65

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

Splintery, Brittle, Metallic

1.6 Cleavage

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

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

1.7 Mohs Hardness

3.5-44-7

2 10

1.8 Chemical Composition

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

Not Available

Sphalerite and Kyanite Chemical Formula

While comparing Sphalerite and Kyanite 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 Kyanite chemical formula.

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

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Sphalerite and Kyanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sphalerite and Kyanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sphalerite and Kyanite Optical Properties during the identification of gemstone. Specific gravity of Sphalerite is 3.53-3.65 whereas that of Kyanite is 3.53-3.65.