| Aeschynite-(Y) | |
|---|---|
-180743.jpg) A fine, well-terminated, complete all-around aeschynite-(Y) crystal fromIveland, Norway | |
| General | |
| Category | Oxide mineral |
| Formula | (Y,Ca,Fe,Th)(Ti,Nb)2(O,OH)6 |
| IMA symbol | Aes-Y[1] |
| Strunz classification | 4.DF.05 |
| Crystal system | Orthorhombic |
| Crystal class | Dipyramidal (mmm) H-M symbol: (2/m 2/m 2/m) |
| Space group | Pmnb |
| Identification | |
| Other characteristics |  Radioactive |
Aeschynite-(Y) (orAeschinite-(Y),Aeschynite-(Yt),Blomstrandine,Priorite) is arare earth mineral ofyttrium,calcium,iron,thorium,titanium,niobium,oxygen, andhydrogen with the chemical formula(Y,Ca,Fe,Th)(Ti,Nb)2(O,OH)6. Its name comes from theGreek word for "shame". ItsMohs scale rating is 5 to 6.
| Oxide minerals |
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| Silicate minerals | |||||
| Other | |||||
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