title: Haiweeite
text: # Haiweeite
  
  Haiweeite is a mineral of uranium and has the chemical formula: $Ca[(UO_2)_2Si_5O_{12}(OH)_2]·3(H_2O).$ It is a secondary mineral of uranium, a product of oxidation. It has a greenish yellow color. It has a Mohs hardness of about 3.5 and is fluorescent under UV light.
  
  It was named after the Haiwee Reservoir, Inyo County, California, US, where it was first found.
  
  