Rock candies are sweet treats that are popular all over the world. They are made by dissolving sugar and boiling it until it reaches a high temperature. The liquid sugar is then left to cool and harden into small crystal rocks that are extremely sweet. There are many different synonyms for rock candies, including crystal candy, hard candy, sugar crystals, sugar rocks, and sugar candy. No matter how you refer to them, these little treats are a favorite of sweet-toothed individuals everywhere. Whether you enjoy them on their own or use them as a sweetener in your favorite drinks, rock candies are a delicious and versatile treat that everyone can enjoy.