Andradite and Aragonite Physical Properties
Solubility
Not Available
Dilute acid
Durability
Not Available
Not Available
Specific Gravity
3.70-4.10
2.93-2.96
Fracture
Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009)
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Cleavage
none
Distinct on {010}, imperfect {110} and {011}
Mohs Hardness
6.5-7
3.5-4
Chemical Composition
Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Andradite and Aragonite Chemical Formula
While comparing Andradite 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 Andradite and Aragonite chemical formula.
- Chemical formula of Andradite- Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
- Chemical formula of Aragonite- CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Andradite and Aragonite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Andradite and Aragonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Andradite and Aragonite Optical Properties during the identification of gemstone. Specific gravity of Andradite is 2.93-2.96 whereas that of Aragonite is 2.93-2.96.