Ettringite and Thomsonite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Partially soluble in water
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
1.77
  
2.25-2.40
  
Fracture
Not Available
  
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)
  
Cleavage
Perfect on {10 1 0}
  
perfect on {010}; good on {100}
  
Mohs Hardness
2-2.5
  
5-5.5
  
Chemical Composition
Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
  
NaCa 2Al 5Si 5O 20 · 6H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Ettringite and Thomsonite Chemical Formula
While comparing Ettringite and Thomsonite 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 Ettringite and Thomsonite chemical formula.
- Chemical formula of Ettringite- Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Thomsonite- NaCa 2Al 5Si 5O 20 · 6H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Ettringite and Thomsonite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Ettringite and Thomsonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ettringite and Thomsonite Optical Properties during the identification of gemstone. Specific gravity of Ettringite is 2.25-2.40 whereas that of Thomsonite is 2.25-2.40.