Rosasite and Ulexite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Effervesces in cold
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
4-4.2
  
1.65-1.99
  
Fracture
Splintery
  
UnevenAnthony et al, Uneven, UnevenAnthony et al, Uneven, Brittle, Metallic
  
Cleavage
Perfect on {100} and {010}
  
{010} Perfect, {110} Perfect
  
Mohs Hardness
4
  
2-2.5
  
Chemical Composition
Not Available
  
NaCaB 5O 6(OH) 6 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
  
Rosasite and Ulexite Chemical Formula
While comparing Rosasite and Ulexite 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 Rosasite and Ulexite chemical formula.
>- Chemical formula of Ulexite- NaCaB 5O 6(OH) 6 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Rosasite and Ulexite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Rosasite and Ulexite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rosasite and Ulexite Optical Properties during the identification of gemstone. Specific gravity of Rosasite is 1.65-1.99 whereas that of Ulexite is 1.65-1.99.