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Discover LudwigThe phrase "a cobalt" is correct and usable in written English.
It can be used when referring to a specific instance or type of cobalt, such as in chemistry or when describing a color.
Example: "The artist chose a cobalt blue for the sky in her painting."
Alternatives: "a cobalt element" or "a cobalt color".
Exact(41)
And what's a Cobalt?
A cobalt ion linked to six ammonia molecules is yellow.
Pass me that lump hammer while I hold down this devil of a cobalt blue.
Tiny silver beading outlined the seams of a cobalt suit, its hem just below the knees.
A cobalt glass nazar boncuk dangles above the cash register, insuring continued prosperity for all.
But, he noted, the baby's father worked as a cobalt digger.
Similar(19)
She was wearing a cobalt-blue suit.
A cobalt-blue sky, eroded grassless earth.
Almonte, glammed up, wore flats and a cobalt-blue dress.
The channel walls were coated with a cobalt-based catalyst.
To raise funds, she created a perfume, sold in a cobalt-blue bottle with intertwined snakes for a stopper.
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com