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Legrandite
Legrandite

Cavansite
Cavansite



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Legrandite and Cavansite 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
3.98-4.04
2.25-2.33
1.5 Fracture
Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle
Brittle, Metallic, Brittle, Metallic
1.6 Cleavage
Imperfect, poor one {100}
Good on {010}
1.7 Mohs Hardness
4.5-5
3-4
1.8 Chemical Composition
Zn 2(AsO 4)(OH) · H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
Ca(VO)Si4O10•4(H2O)

Legrandite and Cavansite Chemical Formula

While comparing Legrandite and Cavansite 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 Cavansite 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 Cavansite- Ca(VO)Si4O10•4(H2O)

Legrandite and Cavansite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Legrandite and Cavansite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Legrandite and Cavansite Optical Properties during the identification of gemstone. Specific gravity of Legrandite is 2.25-2.33 whereas that of Cavansite is 2.25-2.33.