"The one had leaves of dark green that beneath were as shining silver, and from each of his countless flowers a dew of silver light was ever falling, and the earth beneath was dappled with the shadows of his fluttering leaves. The other bore leaves of a young green like the new-opened beech; their edges were of glittering gold. Flowers swung upon her branches in clusters of yellow flame, formed each to a glowing horn that spilled a golden rain upon the ground; and from the blossom of that tree there came forth warmth and a great light. Telperion the one was called in Valinor.... ; but Laurelin the other was... and many names in song beside."

JRR Tolien Silmarillion
: f the Beginning of Days::
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From these trees were made the Silmarils, and upon their destruction, the last blossom of Telperion was made the Moon, and the fruit of Laurelin the Sun. One Silmaril cast upon Earendils crown, to set sail into the stars and to forever cast their light on the children of Iluvitar, the people of Middle Earth.