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