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