also: きんじきん
noun
gold bullion
Refers to gold in bar or ingot form, typically used for investment or reserves.
中央銀行は金地金を保有している。
The central bank holds gold bullion.
金地金の価格が上昇した。
The price of gold bullion has risen.
金塊 is a more general term for a lump or nugget of gold, while 金地金 specifically refers to refined gold in bar/ingot form for investment.
Compound of 金 (きん, gold) and 地金 (じがね, base metal/bullion). The reading きんじきん is a less common variant.