Agate and Galena Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.60-2.64
  
6.23
  
Fracture
Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
  
Subconchoidal, Brittle, Metallic
  
Cleavage
Indiscernible
  
Cubic perfect on [001], parting on [111]
  
Mohs Hardness
6.5-7
  
2.5-2.75
  
Chemical Composition
SiO2
  
PbS
  
Agate and Galena Chemical Formula
While comparing Agate and Galena 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 Agate and Galena chemical formula.
- Chemical formula of Agate- SiO2
- Chemical formula of Galena- PbS
Agate and Galena Specific Gravity
Another important criteria for qualitative analysis of gemstones is Agate and Galena Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Agate and Galena Optical Properties during the identification of gemstone. Specific gravity of Agate is 6.23 whereas that of Galena is 6.23.