Two notable sources of rubidium are the rich deposits of pollucite at Bernic Lake, Manitoba, Canada, and the rubicline ( ( Rb, K ) AlSi 3 O 8 ) found as impurities in pollucite on the Italian island of Elba, with a rubidium content of 17.5 %.
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Two notable sources of rubidium are the rich deposits of pollucite at Bernic Lake, Manitoba, Canada, and the rubicline ( ( Rb, K ) AlSi 3 O 8 ) found as impurities in pollucite on the Italian island of Elba, with a rubidium content of 17.5 %.