Verb
turn to dust (third-person singular simple present turns to dust, present participle turning to dust, simple past and past participle turned to dust)
(intransitive, idiomatic) To die.
What the White man had won with so much blood and dishonesty was not the living land of the Red man, but the corpse of that land. It was decay that the White man won. It would turn to dust in his hands, Alvin knew it. Orson Scott Card
Born in Lust, Turn to Dust. Born in Sin, Come on In. Stephen King
That which you create in beauty and goodness and truth lives on for all time to come. Don't spend your life accumulating material objects that will only turn to dust and ashes. Denis Waitley
An idea can turn to dust or magic, depending on the talent that rubs against it. William Bernbach
Who knows who wrote that song of summer, That blackbirds sing at dusk, This is a song of colour, Where sands sing in crimson, red and rust, Then climb into bed and turn to dust. Kate Bush