Hellandite-(Y)
Properties
| Formula | (Ca,REE)4Y2Al☐2(B4Si4O22)(OH)2 |
| Abbreviation | Hld-Y |
| Classification | Hellandite (group) |
| IMA Status | Approved/redefined (IMA 2002 s.p.) |
| Search other databases | webmineral.com, mindat.org, rruf.info, mineralienatlas.de, Handbook of Mineralogy, American Mineralogist Crystal Structure Database |
| Tags | Hydroxide , Mineral, Borosilicate |
Composition
| Element | Atoms |
|---|---|
| Al | 1 |
| ☐ | 2 |
| Si | 4 |
| H | 2 |
| O | 24 |
| B | 4 |
| Y | 2 |
| REE | ~2 |
| Ca | ~2 |