A searchable guide to the complete WordPress Icon Library (@wordpress/icons) package from Gutenberg.
import { Icon, justifyCenterVertical } from '@wordpress/icons';
<Icon icon={justifyCenterVertical} />
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" aria-hidden="true" focusable="false"><path d="M20 11h-5V4H9v7H4v1.5h5V20h6v-7.5h5z"></path></svg>
justifyCenterVertical – WordPress Icon Library