Spherulitic Recrystallization of Metamict Polycrase
- 3 May 1974
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 184 (4136) , 561-562
- https://doi.org/10.1126/science.184.4136.561
Abstract
Spherulites occur in the metamict matrix of the rare earth AB2A6- type niobium-tantalum-titanium oxide, polycrase. Microprobe analyses show that the spherulites are similar in composition to the metamict polycrase except for a fivefold increase in calcium oxide. X-ray examination suggests that the spherulites are a titanium-rich rare earth fersmite.Keywords
This publication has 2 references indexed in Scilit:
- The Granite Pegmatites of Hitterö, Southwestern NorwayGeologiska Föreningen i Stockholm Förhandlingar, 1942
- The Spherulitic Rhyolites of JerseyMineralogical Magazine, 1932