Samarskite-(Y)
| Samarskite-(Y) | |
|---|---|
Radioactive (Greater than 70 Bq / gram) | |
| References | [2][3][4][5] |
Samarskite is a
rare earth mineral series which includes samarskite-(Y), with the chemical formula (YFe3+Fe2+U,Th,Ca)2(Nb,Ta)2O8[3] and samarskite-(Yb), with the chemical formula (YbFe3+)2(Nb,Ta)2O8.[6] The formula for samarskite-(Y) is also given as (Y,Fe3+,U)(Nb,Ta)O4.[5]
Samarskite crystallizes in the orthorhombic – dipyramidal class as black to yellowish brown stubby prisms although it is typically found as
metamict
and appear coated with a yellow brown earthy rind.
Samarskite occurs in rare earth bearing granite pegmatites with other rare minerals. It occurs in association with columbite, zircon, monazite, uraninite, aeschynite, magnetite, albite, topaz, beryl, garnet, muscovite and biotite.[5]
Samarskite was first described in 1847 for an occurrence in
Vasili Samarsky-Bykhovets (1803–1870).[4]
Samarskite-(Yb) was first described in 2004 for an occurrence in the South Platte Pegmatite District, Jefferson County, Colorado.[6][7]
See also
- Decipium, a mis-identified new element, thought to have been extracted from samarskite in 1878 by Marc Delafontaine.
- List of minerals
- List of minerals named after people
References
Wikimedia Commons has media related to Samarskite-(Y).
- S2CID 235729616.
- ^ https://www.mineralienatlas.de/lexikon/index.php/MineralData?mineral=Samarskite-%28Y%29 Archived 2019-08-11 at the Wayback Machine Mineralienatlas
- ^ a b "Mindat Samarskite-(Y)". Archived from the original on 2006-09-08. Retrieved 2006-08-20.
- ^ a b c http://webmineral.com/data/Samarskite-(Y).shtml Archived 2011-05-14 at the Wayback Machine Webminerals
- ^ a b c "Handbook of Mineralogy" (PDF). Archived (PDF) from the original on 2006-09-12. Retrieved 2006-08-20.
- ^ a b "Mindat Samarskite-(Yb)". Archived from the original on 2010-12-23. Retrieved 2011-02-22.
- ^ "Samarskite-(Yb) on Webmineral". Archived from the original on 2011-06-29. Retrieved 2011-02-22.