2 - 3 Hardness

• Acanthite
  
• Anglesite
• Bismuth
• Barite
• Borax
  
• Calcite
• Chalcopyrite
  
• Copper
  
• Crocoite
• Epsomite
• Galena


• Glauberite


• Gold


• Gypsum


• Halite


• Hydrozincit
  
• Jarosite


• Phosgenite


• Silver
• Sulfur


• Tellurium


• Thenardite


• Ulexite



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Cape Cod Rocks, inc.
Patricia Fox Dauphinee, Executive Director
4 Eel River Road, East Falmouth, MA 02536




01.12.07