Jadeite and Andradite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.28-3.38
3.70-4.10
Fracture
Splintery, UnevenArthur Thomas, Difficult, Fibrous
Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
Good on [110]
none
Mohs Hardness
6.5-7
6.5-7
Chemical Composition
NaAlSi 2O 6Ulrich Henn and Claudio C.
Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Jadeite and Andradite Chemical Formula
While comparing Jadeite and Andradite 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 Jadeite and Andradite chemical formula.
- Chemical formula of Jadeite- NaAlSi 2O 6Ulrich Henn and Claudio C.
- Chemical formula of Andradite- Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Jadeite and Andradite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Jadeite and Andradite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Jadeite and Andradite Optical Properties during the identification of gemstone. Specific gravity of Jadeite is 3.70-4.10 whereas that of Andradite is 3.70-4.10.