Crossword puzzle clue "mother principal site of an ore deposit"

Here are the possible solutions for mother principal site of an ore deposit clue

Answer
Clue
Relevancy
lode
Clue
Mother ___ (principal site of an ore deposit)
Ore deposit
Deposit of ore
Definition
a deposit of valuable ore occurring between definite limits in the surrounding rock
bauxite
Clue
Principal ore of aluminum
Principal aluminum ore
Definition
an ore of aluminium, also BEAUXITE
galena
Clue
Principal ore of lead
Lead's principal ore
Definition
(Latin) the principal ore of lead, also GALENITE
niobium
Clue
Its principal ore is columbite
Definition
a metallic element, formerly called columbium

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