Gedrite and Emerald Physical Properties
Specific Gravity
3.15-3.259
2.67-2.78
Fracture
-
Uneven, ConchoidalWalter Schumann
Cleavage
Gedrite Magnesiogedrite , Comments: Dark gray cleavage fragment of magnesiogedrite (gedrite). , Location: Bamble, Telemark, Norway. , Scale: See Image.
Imperfect on the [0001]
Mohs Hardness
5.5-6
7.5-8
Chemical Composition
(Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
Be3Al2SiO6
Gedrite and Emerald Chemical Formula
While comparing Gedrite and Emerald 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 Emerald 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 Emerald- Be3Al2SiO6
Gedrite and Emerald Specific Gravity
Another important criteria for qualitative analysis of gemstones is Gedrite and Emerald Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gedrite and Emerald Optical Properties during the identification of gemstone. Specific gravity of Gedrite is 2.67-2.78 whereas that of Emerald is 2.67-2.78.