Pigments through the Ages

              
/ or • puh • munt /
Orpiment 
 
   

     
 

  1.  Overview  
  2. History
of use
 
  3. Making the
pigment
 
  4. Technical
details
 
  
  How Orpiment is made:
        
Source:
Natural mineral (at Mineralogy Database) found throughout the world as a low-temperature product of hydrothermal veins, hot-spring deposits, and volcanic sublimation.


Natural variety of pigment
Mineral orpiment is heated with sulfur, allowing a more pure orpiment to sublime out. Orpiment is particularly difïfcult to grind into a pigment.
Artificial variety of pigment
Fusing of arsenic or arsenic oxide with sulfur.
In the lab
Method:
The preparation in the laboratory should not be attempted due to the great toxicity of orpiment.

  The ground pigment:   
        
Pile of ground Orpiment:


Other oranges        
(intro) - Cadmium orange - Chrome orange - Orpiment        

 Sections:  

  purples  

  blues  

  greens  

  yellows  

  oranges  

  reds  

  whites  

  browns  

  blacks  

    
 Look for:    
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