Malachite and Sylvite Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Soluble
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.25-4.10
  
1.993
  
Fracture
Conchoidal, Conchoidal, Gemstones (2009), Uneven
  
Uneven, Brittle
  
Cleavage
Perfect on { 2 01} fair on {010}
  
Perfect on [100], [010], [001]
  
Mohs Hardness
3.5-4
  
2.5
  
Chemical Composition
Cu2CO3(OH)2
  
Not Available
  
Malachite and Sylvite Chemical Formula
While comparing Malachite and Sylvite 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 Sylvite chemical formula.
- Chemical formula of Malachite- Cu2CO3(OH)2
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Malachite and Sylvite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Malachite and Sylvite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Malachite and Sylvite Optical Properties during the identification of gemstone. Specific gravity of Malachite is 1.993 whereas that of Sylvite is 1.993.