D&C 130:8-9; “The place where God resides is a great Urim and Thummim. 9 This earth, in its sanctified and immortal state, will be made like unto crystal and will be a Urim and Thummim to the inhabitants who dwell thereon, whereby all things pertaining to an inferior kingdom, or all kingdoms of a lower order, will be manifest to those who dwell on it; and this earth will be Christ’s.”
Isaiah 66:1; “Thus saith the LORD, The heaven is my throne, and the earth is my footstool: where is the house that ye build unto me? and where is the place of my rest?”
The Bible says nothing about the earth being a giant crystal. This comes from the mind of a crystal gazer and those participating in witchcraft.