Ancylite
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Ancylite is a group of hydrous strontium carbonate minerals containing cerium, lanthanum and minor amounts of other rare earth elements. The composition is Sr(Ce,La)(CO3)2(OH)·(H2O) with ancylite-Ce enriched in cerium and ancylite-La in lanthanum.[1][2]
Ancylite was first described in 1899 for an occurrence in the Narsarsuk pegmatite in west Greenland and named from the Greek αυκιλος for curved in reference to its rounded or distorted crystal form.[1][3]
[edit] References
- ^ a b http://webmineral.com/data/Ancylite-(Ce).shtml Webmineral data Ancylite-Ce
- ^ http://www.handbookofmineralogy.org/pdfs/ancylitela.pdf Handbook of Mineralogy
- ^ http://www.mindat.org/min-216.html Mindat
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