Crystals are made up of minerals hardened into distinct shapes with regular repeating patterns. This informative book takes a look at the underground process that creates crystals, from sparkling quartz to ordinary salt, as well as where they are found and how they are mined.
This is Book 6 in the Lets Rock Series. See all Lets Rock books here.
No one has written a review for 'What Are Crystals?'
Why not be the first to share your opinion?
