nacreous (en)

(adjective) possessing the qualities of, consisting of, or abounding in nacre / (adjective) iridescent

sylvan (en)

(noun) one that frequents groves or woods / (adjective) living or located in the woods or forest / (adjective) of, relating to, or characteristic of the woods or forest / (adjective) made, shaped, or formed of woods or trees / (adjective) abounding in woods, groves, or trees; wooded