A searchable guide to the complete WordPress Icon Library (@wordpress/icons) package from Gutenberg.
import { Icon, postList } from '@wordpress/icons';
<Icon icon={postList} />
<svg viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false"><path d="M18 4H6c-1.1 0-2 .9-2 2v12c0 1.1.9 2 2 2h12c1.1 0 2-.9 2-2V6c0-1.1-.9-2-2-2zm.5 14c0 .3-.2.5-.5.5H6c-.3 0-.5-.2-.5-.5V6c0-.3.2-.5.5-.5h12c.3 0 .5.2.5.5v12zM7 11h2V9H7v2zm0 4h2v-2H7v2zm3-4h7V9h-7v2zm0 4h7v-2h-7v2z"></path></svg>
postList – WordPress Icon Library