Legrandite and Rosasite Physical Properties

Legrandite

Rosasite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

Effervesces in cold

1.3 Durability

Not Available

1.4 Specific Gravity

3.98-4.044-4.2

1 7.18

1.5 Fracture

Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle

Splintery

1.6 Cleavage

Imperfect, poor one {100}

Perfect on {100} and {010}

1.7 Mohs Hardness

4.5-54

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 Rosasite Chemical Formula

While comparing Legrandite and Rosasite 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 Rosasite 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 Rosasite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Legrandite and Rosasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Legrandite and Rosasite Optical Properties during the identification of gemstone. Specific gravity of Legrandite is 4-4.2 whereas that of Rosasite is 4-4.2.