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Legrandite
Legrandite

Ajoite
Ajoite



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Legrandite
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Legrandite and Ajoite Physical Properties

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1 Physical Properties
1.1 Tenacity
Brittle
Not Available
1.2 Solubility
Not Available
Decomposed by acids
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.98-4.04
2.96
1.5 Fracture
Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle
Not Available
1.6 Cleavage
Imperfect, poor one {100}
Perfect on {010}
1.7 Mohs Hardness
4.5-5
5
1.8 Chemical Composition
Zn 2(AsO 4)(OH) · H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
(K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)

Legrandite and Ajoite Chemical Formula

While comparing Legrandite and Ajoite 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 Ajoite chemical formula.

  • Chemical formula of Legrandite- Zn 2(AsO 4)(OH) · H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Ajoite- (K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)

Legrandite and Ajoite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Legrandite and Ajoite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Legrandite and Ajoite Optical Properties during the identification of gemstone. Specific gravity of Legrandite is 2.96 whereas that of Ajoite is 2.96.