Mottramite and Datolite Physical Properties
Tenacity
Brittle
  
Brittle
  
Solubility
Soluble
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
5.9
  
2.90-3.00
  
Fracture
Sub-Conchoidal, Brittle, Metallic
  
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Metallic
  
Cleavage
None observed
  
None
  
Mohs Hardness
3
  
5-5.5
  
Chemical Composition
Not Available
  
CaBSiO 4(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Mottramite and Datolite Chemical Formula
While comparing Mottramite and Datolite 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 Mottramite and Datolite chemical formula.
>- Chemical formula of Datolite- CaBSiO 4(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Mottramite and Datolite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Mottramite and Datolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Mottramite and Datolite Optical Properties during the identification of gemstone. Specific gravity of Mottramite is 2.90-3.00 whereas that of Datolite is 2.90-3.00.