A searchable guide to the complete WordPress Icon Library (@wordpress/icons) package from Gutenberg.
import { Icon, chevronUpDown } from '@wordpress/icons';
<Icon icon={chevronUpDown} />
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" aria-hidden="true" focusable="false"><path d="m12 20-4.5-3.6-.9 1.2L12 22l5.5-4.4-.9-1.2L12 20zm0-16 4.5 3.6.9-1.2L12 2 6.5 6.4l.9 1.2L12 4z"></path></svg>
chevronUpDown – WordPress Icon Library