title: Iyoite
text: # Iyoite
  
  Iyoite is a very rare manganese copper chloride hydroxide mineral with the formula $MnCuCl(OH)_3.$ Iyoite is a new member of the atacamite group, and it an analogue of botallackite characterized in manganese and copper ordering. Iyoite is monoclinic (space group $P2_1/m).$ It is chemically similar to misakiite. Both minerals come from the Ohku mine in the Ehime prefecture, Japan.
  
  