holycannoli1738 t1_j90bu2w wrote on February 18, 2023 at 6:37 AM Reply to TIL that the gemstone jet, where the phrase 'jet black' comes from, is actually a form of coal. by ih8pkmn TIL about the origin of “jet black” Permalink 2
holycannoli1738 t1_j90bu2w wrote
Reply to TIL that the gemstone jet, where the phrase 'jet black' comes from, is actually a form of coal. by ih8pkmn
TIL about the origin of “jet black”