Minerals Cavansite and
pentagonite are vanadyl-containing minerals.
Water VO2+, often in an ionic pairing with sodium (NaH2VO4), is the second most abundant
transition metal in
seawater, with its concentration only being exceeded by
molybdenum. In the ocean the average concentration is 30
nM. Some
mineral water springs also contain the ion in high concentrations. For example, springs near
Mount Fuji often contain as much as 54
μg per
liter. ==Vanadyl-containing compounds ==