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Riebeckite
Riebeckite

Legrandite
Legrandite



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Riebeckite
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Riebeckite and Legrandite Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Brittle
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.28-3.44
3.98-4.04
1.5 Fracture
Uneven, Splintery, Brittle
Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle
1.6 Cleavage
Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}
Imperfect, poor one {100}
1.7 Mohs Hardness
5.0-6.0
4.5-5
1.8 Chemical Composition
Not Available
Zn 2(AsO 4)(OH) · H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Riebeckite and Legrandite Chemical Formula

While comparing Riebeckite 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 Riebeckite and Legrandite chemical formula.

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

Riebeckite and Legrandite Specific Gravity

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