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Legrandite
Legrandite

Powellite
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Legrandite
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Legrandite and Powellite Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.98-4.04
4.23
1.5 Fracture
Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle
UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
1.6 Cleavage
Imperfect, poor one {100}
{111} Distinct
1.7 Mohs Hardness
4.5-5
3.5-4
1.8 Chemical Composition
Zn 2(AsO 4)(OH) · H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
CaMoO 4Michael O’Donoghue , Gems, Sixth Edition (2006)

Legrandite and Powellite Chemical Formula

While comparing Legrandite and Powellite 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 Powellite 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 Powellite- CaMoO 4Michael O’Donoghue , Gems, Sixth Edition (2006)

Legrandite and Powellite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Legrandite and Powellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Legrandite and Powellite Optical Properties during the identification of gemstone. Specific gravity of Legrandite is 4.23 whereas that of Powellite is 4.23.