Verdite and Legrandite Physical Properties

Verdite

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

2.80-3.03.98-4.04

1 7.18

1.5 Fracture

Not Available

Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

{110} Good

Imperfect, poor one {100}

1.7 Mohs Hardness

34.5-5

2 10

1.8 Chemical Composition

NaFeS2•2(H2O)

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

Verdite and Legrandite Chemical Formula

While comparing Verdite 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 Verdite and Legrandite chemical formula.

Chemical formula of Verdite- NaFeS2•2(H2O)
Chemical formula of Legrandite- Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Verdite and Legrandite Specific Gravity

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