Korobitsynite Na3(Ti,Nb)2[Si4O12](OH,O)2 Approved IMA 1999 (Dana # Added)
NAME ORIGIN: Named after Mikhail Fedorovich Korobitsyn (1928-1996), amateur mineralogist and collector who made significant contributions to mineralogical investigations of the Lovozero alkaline complex.
NAME ORIGIN: Named for the locality. LOCALITY: Kumdy Kol, Kokchetav, Northern Kazakhstan
Kumtyubeite Ca5(SiO4)2F2 Approved IMA 2008 (Dana # Added)
NAME ORIGIN: The name derives from Kum-Tyube, the name of a mountain plateau situated at the locality where this mineral was found. LOCALITY: Upper Chegem caldera structure, Kabardino-Balkaria, Northern Caucasus, Russia
NAME ORIGIN: Named for Igor V. Kurchatov (1903-1960), Russian physicist.
Kurgantaite CaSr[B5O9]Cl Approved IMA 2000 (Dana # Added)
NAME ORIGIN: Named for the locality. Revalidated 2002 from a mineral described in 1952 and discredited in 1984. LOCALITY: Western Kargan-tau, Inder uplift (Salt Dome), northern Caspian area, western Kazakhstan.