ʻO ka Neodymium kahi metala ferromagnetic, ʻo ia hoʻi, ua maʻalahi ka magnetized ma kahi kumu kūʻai kumu kūʻai.Ma waho o nā mea mana mau loa, ʻo Neodymium ka mea ikaika loa, a ʻoi aku ka hoʻokiʻekiʻe ʻana no kona nui ma mua o ka samarium cobalt a me nā magnet seramic.Ke hoʻohālikelike ʻia me nā mea hoʻokalakupua honua ʻē aʻe e like me ka samarium cobalt, ʻoi aku ka maikaʻi o nā magnet Neodymium nui a ʻoi aku ka maikaʻi.Loaʻa iā Neodymium ka nui o ka mana-a-kaumaha ratio a me ke kūpaʻa kiʻekiʻe i ka demagnetization ke hoʻohana ʻia a mālama ʻia i nā mahana kūpono.