Blue calcite is a soothing crystal known for its calming energy. It is linked to the throat chakra, helping with communication and emotional expression. Often used in meditation, it's believed to reduce stress, ease tension, and support emotional healing. It forms in sedimentary environments, typically in caves, hydrothermal veins, or as a result of water evaporating in certain regions. The blue color is often caused by the presence of trace elements like copper or iron. It has a relatively soft hardness of 3 on the Mohs scale and a distinctive rhombohedral crystal structure.