Gedrite and Nephrite Physical Properties
Specific Gravity
3.15-3.259
2.90-3.10
Fracture
-
Splintery, Granular
Cleavage
Gedrite Magnesiogedrite , Comments: Dark gray cleavage fragment of magnesiogedrite (gedrite). , Location: Bamble, Telemark, Norway. , Scale: See Image.
None
Mohs Hardness
5.5-6
6-6.5
Chemical Composition
(Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
Ca 2(Mg,Fe) 5(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references
Gedrite and Nephrite Chemical Formula
While comparing Gedrite and Nephrite 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 Gedrite and Nephrite chemical formula.
- Chemical formula of Gedrite- (Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
- Chemical formula of Nephrite- Ca 2(Mg,Fe) 5(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references
Gedrite and Nephrite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Gedrite and Nephrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gedrite and Nephrite Optical Properties during the identification of gemstone. Specific gravity of Gedrite is 2.90-3.10 whereas that of Nephrite is 2.90-3.10.