Legrandite and Celestine Physical Properties

Legrandite

Celestine

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

3.98-4.043.90-4.00

1 7.18

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Fracture

Conchoidal

Cleavage

Imperfect, poor one {100}

Perfect on {001}, good on {210}, poor on {010}

Mohs Hardness

4.5-53-3.5

2 10

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Chemical Composition

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

SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Legrandite and Celestine Chemical Formula

While comparing Legrandite and Celestine 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 Celestine 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 Celestine- SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Legrandite and Celestine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Legrandite and Celestine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Legrandite and Celestine Optical Properties during the identification of gemstone. Specific gravity of Legrandite is 3.90-4.00 whereas that of Celestine is 3.90-4.00.