Wiktionary
vanadiocarpholite
n. (context mineralogy English) An orthorhombic-dipyramidal mineral containing aluminum, hydrogen, manganese, oxygen, silicon, and vanadium.
Wikipedia
Vanadiocarpholite
Vanadiocarpholite (MnVAlSiO(OH)) is straw yellow to brown silicate mineral. It crystallizes in the orthorhombic crystal system. It is the vanadium rich variety of carpholite (MnAlSiO(OH)).