Wikipedia
Ichnusaite
Ichnusaite is a very rarely found mineral. Ichnusaite is a natural compound of thorium and molybdenum with the formula Th(MoO)ยท3HO. It was discovered in Su Seinargiu, Sarroch, Cagliari, Sardegna, Italy in 2013.
This locality is also a place of discovery of the second natural thorium molybdate - nuragheite.