Unidentified native stone

An interesting stone of iridescent gray color was native to a world that was visited by the Jedi Padawan, Orla Jareni. Artists of that world's used the stone in the creation of their statues. Later, upon seeing the lifeless remains of Jedi Knight Regald Coll, Jareni remarked that his features were so well-preserved that he resembled a statue made using the very same stone.