Legrandite and Aragonite Physical Properties
Solubility
Not Available
Dilute acid
Durability
Not Available
Not Available
Specific Gravity
3.98-4.04
2.93-2.96
Fracture
Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Cleavage
Imperfect, poor one {100}
Distinct on {010}, imperfect {110} and {011}
Mohs Hardness
4.5-5
3.5-4
Chemical Composition
Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Legrandite and Aragonite Chemical Formula
While comparing Legrandite and Aragonite 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 Aragonite chemical formula.
- Chemical formula of Legrandite- Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Aragonite- CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Legrandite and Aragonite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Legrandite and Aragonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Legrandite and Aragonite Optical Properties during the identification of gemstone. Specific gravity of Legrandite is 2.93-2.96 whereas that of Aragonite is 2.93-2.96.