Friedelite and Ruby Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.06-3.19
  
3.97-4.05
  
Fracture
UnevenArthur Thomas, Gemstones (2009) Tough, UnevenArthur Thomas, Gemstones (2009) Tough, Brittle, Uneven
  
Conchoidal
  
Cleavage
{010} Perfect
  
No true cleavage
  
Mohs Hardness
4-5
  
9
  
Chemical Composition
Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.
  
Al 2 O 3
  
Friedelite and Ruby Chemical Formula
While comparing Friedelite and Ruby 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 Friedelite and Ruby chemical formula.
- Chemical formula of Friedelite- Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.
- Chemical formula of Ruby- Al 2 O 3
Friedelite and Ruby Specific Gravity
Another important criteria for qualitative analysis of gemstones is Friedelite and Ruby Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Friedelite and Ruby Optical Properties during the identification of gemstone. Specific gravity of Friedelite is 3.97-4.05 whereas that of Ruby is 3.97-4.05.