text: In March 2017 an hydrated calcium phyllomanganate with formula CaMnO•1.5-2HO (x = 0.05–0.08) was accepted as new mineral by the International Mineralogical Association. This new species was discovered and described by Dr. Thomas Witzke and colleagues. It was named Lagalyite, in honor of Gerhad Lagaly and his contributions to the fields of clay chemistry and mineralogy.