Apatite forms as crystals or masses. Its color range consists of yellow, white, olive green, deep blue, purple, brown, red/brown and colorless. The most common colors are yellow/green and blue.
Apatite stimulates the intellect and dissolves aloofness and negativity. It's helpful when working with healing, balancing energy, or teaching. Apatite promotes self-insight, clarity, peace and creativity. It can be used to increase or decrease the appetite, so it's very helpful when trying to gain or lose weight.
Apatite is a good stone to carry when Mercury is retrograde. Not only is it associated with the planet, but it also facilitates diplomacy and communication.
Apatite is associated with the element of Air, the planet Mercury, and the zodiac sign Gemini.