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John Ore was born in 1933.
John Stafford Brown has written:
'Ore genesis' -- subject(s): Ore deposits
John Van N. Dorr has written:
'Geology and ore deposits of the Itabira district, Minas Gerais, Brazil' -- subject(s): Ore deposits, Iron ores, Geology
Uranium ore is not...uranium ore !
iron ore iron ore