Mineral Colour Plates are small thumbnail images of minerals, as well as synthetic compounds and chemical elements, with articles that can be found in the MIROFOSS database. The following table shows all of the MOHS HARDNESS THREE (3) minerals found in MIROFOSS organized vertically by mineral group. Certain minerals may appear in multiple hardness categories if the mineral has a hardness range. Clicking on a mineral plate image will bring you to the corresponding MIROFOSS article. Please note this page may take a while to load on slower computers or with slower internet connections.
         
   
Copper — Mohs 3.0 Aluminium — Mohs 3.0 > 2.5 Magnesium — Mohs 3.0 > 2.5 Zinc — Mohs 3.0 > 2.5    
           
         
     
Bornite — Mohs 3.0 Chalcopyrite — Mohs 3.5 < 4.0 Celestine — Mohs 3.0 < 3.5      
           
         
         
Creedite — Mohs 3.5          
           
         
         
Brucite — Mohs 3.0 > 2.5          
           
         
   
Calcite — Mohs 3.0 Rhodochrosite – Mohs 3.5 < 4.0 Siderite — Mohs 3.5 < 4.5 Azurite — Mohs 3.5 < 4.0    
           
         
           
           
           
         
     
Vanadinite — Mohs 3.5 < 4.0 Anapaite — Mohs 3.5 Descloizite — Mohs 3.0 < 3.5      
           
         
   
Ferrierite — Mohs 3.0 > 3.5 Lepidolite — Mohs 3.0 > 2.5 Zinwaldite — Mohs 2.5 < 4.0 Cavansite — Mohs 3.0 < 4.0    
           
         
 
Anhydrite — Mohs 3.0 < 3.5 Bowelstone — Mohs 3.0 < 3.5 Baryte — Mohs 3.0 < 3.5 Crocoite — Mohs 3.0 > 2.5 Baryte Rose — Mohs 3.0 < 3.5