A searchable guide to the complete WordPress Icon Library (@wordpress/icons) package from Gutenberg.
import { Icon, justifyBottom } from '@wordpress/icons';
<Icon icon={justifyBottom} />
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" aria-hidden="true" focusable="false"><path d="M15 4H9v11h6V4zM4 18.5V20h16v-1.5H4z"></path></svg>
justifyBottom – WordPress Icon Library