A searchable guide to the complete WordPress Icon Library (@wordpress/icons) package from Gutenberg.
import { Icon, key } from '@wordpress/icons';
<Icon icon={key} />
<svg viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false"><path d="M9 13.5a1.5 1.5 0 100-3 1.5 1.5 0 000 3zM9 16a4.002 4.002 0 003.8-2.75H15V16h2.5v-2.75H19v-2.5h-6.2A4.002 4.002 0 005 12a4 4 0 004 4z" fill-rule="evenodd" clip-rule="evenodd"></path></svg>
key – WordPress Icon Library