Aeschynite-(Y)

{{Short description|Rare earth mineral}}

{{Infobox mineral

| name = Aeschynite-(Y)

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| image = Aeschynite-(Y)-180743.jpg

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| caption = A fine, well-terminated, complete all-around aeschynite-(Y) crystal from Iveland, Norway

| category = Oxide mineral

| formula = {{chem2|(Y,Ca,Fe,Th)(Ti,Nb)2(O,OH)6}}

|IMAsymbol=Aes-Y{{Cite journal|last=Warr|first=L.N.|date=2021|title=IMA–CNMNC approved mineral symbols|journal=Mineralogical Magazine|volume=85|issue=3|pages=291–320|doi=10.1180/mgm.2021.43|bibcode=2021MinM...85..291W|s2cid=235729616|doi-access=free}}

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| strunz = 4.DF.05

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| system = Orthorhombic

| class = Dipyramidal (mmm)
H-M symbol: (2/m 2/m 2/m)

| symmetry = Pmnb

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| other = 25px Radioactive

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Aeschynite-(Y) (or Aeschinite-(Y), Aeschynite-(Yt), Blomstrandine, Priorite) is a rare earth mineral of yttrium, calcium, iron, thorium, titanium, niobium, oxygen, and hydrogen with the chemical formula {{chem2|(Y,Ca,Fe,Th)(Ti,Nb)2(O,OH)6}}. Its name comes from the Greek word for "shame". Its Mohs scale rating is 5 to 6.