JS revelation says all things created spiritually.
“A Book of Commandments & Revelations of the Lord given to Joseph the Seer & others by the Inspiration of God & gift & power of the Holy Ghost which Beareth Re[c]ord of the Father & Son & Holy Ghost which is one God Infinite & eternal World without end Amen,” Revelation Book 1 (D&C 29: 31-32)
31 For by the power of my Spirit created I them; yea, all things both spiritual and temporal— 32 First spiritual, secondly temporal, which is the beginning of my work;