Rosasite and Legrandite Physical Properties

Rosasite

Legrandite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Effervesces in cold

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4-4.23.98-4.04

1 7.18

1.5 Fracture

Splintery

Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

Perfect on {100} and {010}

Imperfect, poor one {100}

1.7 Mohs Hardness

44.5-5

2 10

1.8 Chemical Composition

Not Available

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

Rosasite and Legrandite Chemical Formula

While comparing Rosasite 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 Rosasite and Legrandite 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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Rosasite and Legrandite Specific Gravity

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