nuragheite

{{Infobox mineral | name = Nuragheite | boxwidth = | boxbgcolor = | image = | imagesize = | alt = | caption = | category = Molybdate minerals | formula = Th(MoO4)2·H2O | IMAsymbol = Nur | molweight = | strunz = | system = Monoclinic | class = Prismatic (2/m) (same H-M symbol) | symmetry = P21/c | unit cell = a = 7.36, b = 10.54 c = 9.49 [Å], β=91.88° (approximated) | color = Colorless | colour = | habit = Thin tablets | twinning = | cleavage = {100}, perfect | fracture = | tenacity = Brittle | mohs = | luster = Pearly adamantine | streak = White | diaphaneity = | gravity = 5.15 (calc., approximated) | density = | polish = | opticalprop = | refractive = | birefringence = | pleochroism = | 2V = | dispersion = | extinction = | length fast/slow = | fluorescence = | absorption = | melt = | fusibility = | diagnostic = | solubility = | impurities = | alteration = | other = 25px Radioactive | prop1 = | prop1text = | references = }} Nuragheite is a rare natural thorium molybdate, formula Th(MoO4)2·H2O, discovered in Su Seinargiu, Sarroch, Cagliari, Sardegna, Italy. This locality is also a place of discovery of the other thorium molybdate - ichnusaite, which is a trihydrate.

==Occurrence and association== Nuragheite is a part of molybdenum-bismuth mineralization. It coexists with ichnusaite, muscovite, and xenotime-(Y).