CoVFeFe
Cobalt atomic number 27
Vanadium 23
Fe 26
https://en.wikipedia.org/wiki/Vanadium
https://en.wikipedia.org/wiki/Cobalt
https://en.wikipedia.org/wiki/Iron
Each one is very very interesting for those that have dug deep enough and know what we are dealing with.
Vanadium was the most interesting.
By-product of Uranium production. Uranium mining supplied the largest share of demand for Vanadium.
Found in blood-hemovandin
Mixed with titanium and aluminum-dental implants
Burning of Fossil fuels 110000 ppm
Roasted with crushed NaCl produces Red cake
Green Giant mine Madagascar
Ford used it in his model T for light weight and tensile strength. Also caused the corrosion down the road.
Mined in South Africa, China and Russia
Tons more info in those three links. Too much to add here.