The Crystal Candies are coming to Candy Crush Saga so prepare to chill out!
Crystal Candies are a shimmering frozen layer over your usual Candies. You'll need to crack this casing to access the sweet contents underneath.
Matching trapped Candies will break down the Crystal layer, but you'll need to remove the Crystal if you want to reach the Candies underneath. Any Candies covered by the Crystal will count in any match, but you won't be able to tap them to move them. You will be able to switch a Candy next to a trapped Candy though!
To help illustrate this, the image below shows that you can move the orange Candy under the Crystal, but you cannot move the blue Candy out from underneath, as the Crystal will stop you.
You may sometimes find Crystal Candies placed on the board that don't have Candies trapped inside. When you match Candies lower down on the board, any Candies at the top of the board will glide underneath the Crystal into any empty spaces you make.
To really make the Crystal crashes you need, why not try using wrapped Candy blasts or trigger a Striped Candy?
Different Boosters and Special Candies will have a different impact on the Crystal be sure to try out all your options. Get cracking!