The expression “coffee break” was first attested in 1952 in glossy magazine advertisements by the Pan-American Coffee Bureau.
siderite, chalybite
(noun) iron ore in the form of ferrous carbonate
Source: WordNet® 3.1
chalybite (countable and uncountable, plural chalybites)
(mineral) Native iron carbonate.
• siderite
Source: Wiktionary
Chal"y*bite, n. (Min.)
Definition: Native iron carbonate; -- usually called siderite.
Source: Webster’s Unabridged Dictionary 1913 Edition
2 May 2025
(noun) excavation consisting of a vertical or sloping passageway for finding or mining ore or for ventilating a mine
The expression “coffee break” was first attested in 1952 in glossy magazine advertisements by the Pan-American Coffee Bureau.