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Faili:Rareearthoxides.jpg

Faili halisi ‎(piseli 1,200 × 780, saizi ya faili: 573 KB, aina ya MIME: image/jpeg)

Faili hili linatoka Wikimedia Commons. Maelezo yapo kule kwenye ukurasa wake wa maelezo unaonekana hapo chini.
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Muhtasari

Maelezo
English: These rare-earth oxides are used as tracers to determine which parts of a watershed are eroding. Clockwise from top center: praseodymium, cerium, lanthanum, neodymium, samarium, and gadolinium.
Chanzo http://www.ars.usda.gov/is/graphics/photos/jun05/d115-1.htm
Mwandishi Peggy Greb, US department of agriculture

Hatimiliki

Public domain This image is in the public domain because it contains materials that originally came from the Agricultural Research Service, the research agency of the United States Department of Agriculture.

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  • 2009-06-27 10:49 Materialscientist 640×416× (175375 bytes) {{Information |Description = These rare-earth oxides are used as tracers to determine which parts of a watershed are eroding. Clockwise from top center: praseodymium, cerium, lanthanum, neodymium, samarium, and gadolinium. |Source = http://ww

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Tarehe/SaaPicha ndogoVipimoMtumiajiMaelezo
sasa hivi11:38, 25 Aprili 2015Picha ndogo ya toleo la 11:38, 25 Aprili 20151,200 × 780 (573 KB)Materialscientistresolution
04:55, 1 Juni 2010Picha ndogo ya toleo la 04:55, 1 Juni 2010640 × 416 (171 KB)HarDNox{{Information |Description={{en|These rare-earth oxides are used as tracers to determine which parts of a watershed are eroding. Clockwise from top center: praseodymium, cerium, lanthanum, neodymium, samarium, and gadolinium.<br/> [[:en:Category:lanthanid

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