Legrandite and Sphalerite Physical Properties

Legrandite

Sphalerite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

3.98-4.043.95-4.10

1 7.18

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Fracture

Conchoidal

Uneven

Cleavage

Imperfect, poor one {100}

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

Mohs Hardness

4.5-53.5-4

2 10

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Chemical Composition

Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Legrandite and Sphalerite Chemical Formula

While comparing Legrandite 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 Legrandite and Sphalerite chemical formula.

Chemical formula of Legrandite- Zn 2(AsO 4)(OH) · H 2OMichael 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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Legrandite and Sphalerite Specific Gravity

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