samarskite

samarskite

[suh-mahr-skahyt]
noun
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.

Origin:
< German Samarskit (1847), after Russian mining engineer V.E. Samarskiĭ-Bykhovets (1803–70); see -ite1

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samarskite (səˈmɑːskaɪt)
 
n
a velvety black mineral of complex composition occurring in pegmatites: used as a source of uranium and certain rare earth elements
 
[C19: named after Colonel von Samarski, 19th-century Russian inspector of mines]

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