I te tau 1880, ka wehea e G.de Marignac o Switzerland te "samarium" ki nga wahanga e rua, ko tetahi i whakapumautia e Solit hei samarium me tetahi atu huānga i whakapumautia e te rangahau a Bois Baudelaire. I te tau 1886, ka whakaingoatia e Marignac tenei huānga hou ko te gadolinium hei whakanui i te tohunga kemu Tatimana a Ga-do Linium, nana nei ...
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