Chrysoprase and Legrandite Physical Properties

Chrysoprase

Legrandite

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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

2.58-2.643.98-4.04

1 7.18

1.5 Fracture

Gems, Sixth Edition (2006)

Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

None

Imperfect, poor one {100}

1.7 Mohs Hardness

6.5-74.5-5

2 10

1.8 Chemical Composition

SiO₂ (with a high level of nickel impurities )

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

Chrysoprase and Legrandite Chemical Formula

While comparing Chrysoprase and Legrandite 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 Chrysoprase and Legrandite chemical formula.

Chemical formula of Chrysoprase- SiO₂ (with a high level of nickel impurities )
Chemical formula of Legrandite- Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Chrysoprase and Legrandite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Chrysoprase and Legrandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chrysoprase and Legrandite Optical Properties during the identification of gemstone. Specific gravity of Chrysoprase is 3.98-4.04 whereas that of Legrandite is 3.98-4.04.