• mindat.org
  Excellent site for photos and info on minerals
  
  
• Webmineral Database
  Another excellent site for photos and info on minerals
  
  
• The Image
  Also a good site for photos and info on minerals
  
  
• Amethyst Galleries
  * a very useful site for identifying mineral characteristics (including photos!)
  
  
• Surveillance-Video.com Crystallography 101(crystallography site)
  Information & links on crystallography
  
  
• International Colored Gemstones Association

• Smithsonian Gems and Minerals Collection
  
  
• Smithsonian - Department of Mineral Sciences
  
  
• National Gemstone Homepage
  
  
• Clausthal Mineral Collection
  
  
• Larson Jewelers - List of Element & Mineral Uses
  
  

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Updated 12/17