Plural of bullion: quantities of precious metals like gold or silver, usually in bulk form rather than coins.
From Old French 'bouillon' meaning 'boiling' or 'melting', referring to molten precious metals being poured into ingot forms. This became the standard term for bulk precious metals.
Gold bars and ingots are so heavy that a standard gold bullion bar weighs about 27.5 pounds—that's why bullion dealers use special scales and security vaults!
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