Dumortierite and Sphalerite Physical Properties

Dumortierite

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

3.26-3.413.95-4.10

1 7.18

1.7 Fracture

Fibrous, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references

UnevenWalter Schumann, Gemstones of the world (2001) More from other references, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Uneven

1.8 Cleavage

Distinct on {100}, poor on {110}; parting on {001}

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

1.9 Mohs Hardness

7-8.53.5-4

2 10

1.13 Chemical Composition

AlAl₆O₃BSi₃O₁₈

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

Dumortierite and Sphalerite Chemical Formula

While comparing Dumortierite 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 Dumortierite and Sphalerite chemical formula.

Chemical formula of Dumortierite- AlAl₆O₃BSi₃O₁₈
Chemical formula of Sphalerite- (Zn,Fe)SMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Dumortierite and Sphalerite Specific Gravity

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