samarskite

American  

[suh-mahr-skahyt] / səˈmɑr skaɪt /

noun

1. a velvet-black mineral, a complex columbate-tantalate of uranium, cerium, etc., occurring in masses: a minor source of uranium, thorium, and rare-earth oxides.

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samarskite British  

/ səˈmɑːskaɪt /

noun

1. a velvety black mineral of complex composition occurring in pegmatites: used as a source of uranium and certain rare earth elements

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Etymology

Origin of samarskite

< German Samarskit (1847), after Russian mining engineer V.E. Samarskiĭ- Bykhovets (1803–70); see -ite ¹

Example Sentences

Cleveite, samarskite and fergusonite contain a little more than monazite.

From Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 2 "Hearing" to "Helmond" by Various

The rare earth metals are found in the minerals gadolinite, samarskite, fergusonite, euxenite and cerite.

From Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 7 "Equation" to "Ethics" by Various

Thus, after a careful analysis of the rare mineral samarskite, she found an insoluble residue which led her to believe might contain unknown elements.

From Woman in Science With an Introductory Chapter on Woman's Long Struggle for Things of the Mind by Zahm, John Augustine

It is usually found associated with tantalum, the chief minerals containing these two elements being tantalite, columbite, fergusonite and yttrotantalite; it is also a constituent of pyrochlor, euxenite and samarskite.

From Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 6 "Cockaigne" to "Columbus, Christopher" by Various

In 1880 Marignac examined certain earths obtained from the mineral samarskite, which had already in 1878 received attention from Delafontaine and later from Lecoq de Boisbaudran.

From Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" by Various