Malachite and Alabaster Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.25-4.10
  
2.30
  
Fracture
Conchoidal, Conchoidal, Gemstones (2009), Uneven
  
Not Available
  
Cleavage
Perfect on { 2 01} fair on {010}
  
Not Available
  
Mohs Hardness
3.5-4
  
2
  
Chemical Composition
Cu2CO3(OH)2
  
CaSO 4 · 2H 2OWalter Schumann , Gemstones of the world (2001)
  
Malachite and Alabaster Chemical Formula
While comparing Malachite and Alabaster 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 Malachite and Alabaster chemical formula.
- Chemical formula of Malachite- Cu2CO3(OH)2
- Chemical formula of Alabaster- CaSO 4 · 2H 2OWalter Schumann , Gemstones of the world (2001)
Malachite and Alabaster Specific Gravity
Another important criteria for qualitative analysis of gemstones is Malachite and Alabaster Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Malachite and Alabaster Optical Properties during the identification of gemstone. Specific gravity of Malachite is 2.30 whereas that of Alabaster is 2.30.