A searchable guide to the complete WordPress Icon Library (@wordpress/icons) package from Gutenberg.
import { Icon, chartBar } from '@wordpress/icons';
<Icon icon={chartBar} />
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" aria-hidden="true" focusable="false"><path fill-rule="evenodd" d="M11.25 5h1.5v15h-1.5V5zM6 10h1.5v10H6V10zm12 4h-1.5v6H18v-6z" clip-rule="evenodd"></path></svg>
chartBar – WordPress Icon Library