Legrandite and Plumbogummite Physical Properties

Legrandite

Plumbogummite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.98-4.044.014

1 7.18

1.5 Fracture

Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle

Uneven, Conchoidal

1.6 Cleavage

Imperfect, poor one {100}

None

1.7 Mohs Hardness

4.5-54-5

2 10

1.8 Chemical Composition

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

Not Available

Legrandite and Plumbogummite Chemical Formula

While comparing Legrandite and Plumbogummite 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 Plumbogummite chemical formula.

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

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Legrandite and Plumbogummite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Legrandite and Plumbogummite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Legrandite and Plumbogummite Optical Properties during the identification of gemstone. Specific gravity of Legrandite is 4.014 whereas that of Plumbogummite is 4.014.