parisite
/ˈparɪsʌɪt/Mineralogy
noun
A brownish-yellow mineral of the trigonal crystal system, consisting of a fluoride and carbonate of calcium, cerium (or neodymium), and lanthanum.
Origin
Mid 19th century; earliest use found in American Journal of Science. From German Parisit from the name of J. J. Paris, mine proprietor in Colombia + -it.