Jade and Jacobsite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.90-3.38
4.76-5.03
Fracture
Gemstones of the world (2001), Difficult, Splintery
Conchoidal, Brittle
Cleavage
1 or 2,2 prismatic.
None
Mohs Hardness
6-7
5.5-6.5
Chemical Composition
Nephrite: Ca2(Mg,Fe)5Si8O22(OH)2 Jadeite: NaAlSi2O6
(Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
Jade and Jacobsite Chemical Formula
While comparing Jade and Jacobsite 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 Jade and Jacobsite chemical formula.
- Chemical formula of Jade- Nephrite: Ca2(Mg,Fe)5Si8O22(OH)2 Jadeite: NaAlSi2O6
- Chemical formula of Jacobsite- (Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
Jade and Jacobsite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Jade and Jacobsite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Jade and Jacobsite Optical Properties during the identification of gemstone. Specific gravity of Jade is 4.76-5.03 whereas that of Jacobsite is 4.76-5.03.