Recrystallization o
- journal_title：Mineralogical Magazine
- Contributor：T. Beirau ; C. Paulmann ; U. Bismayer
- Publisher：Mineralogical Society of Great Britain and Ireland
- Date：2011-
- Format：text/html
- Language：en
- Identifier：10.1180/minmag.2011.075.4.2393
- journal_abbrev：Mineralogical Magazine
- issn：0026-461X
- volume：75
- issue：4
- firstpage：2393
- section：Articles
摘要
Allanite is a common accessory mineral in igneous rocks. Allanite becomes metamict over geological time-scales as a result of the α-decay of radioactive elements in the crystal structure. This study focuses on the recrystallization of metamict allanite from Savvushka, Russia. The structural recovery produced by annealing was investigated by X-ray powder diffraction, single-crystal synchrotron X-ray diffraction and infrared spectroscopy. A kinetic analysis is presented that shows that the recrystallization process proceeds by at least two different mechanisms.