labuntsovite

== English == === Etymology === Named after Aleksander Nikolaevich Labuntsov and Ekaterina Eutiikkieva Labuntsov-Kostyleva who were Russian mineralogists +‎ -ite === Noun === labuntsovite (mineralogy) A monoclinic mineral which is a complex niobate silicate of potassium, barium, sodium and transition metals.