This is a beautiful White selenite heart.
Selenite is a form of Gypsum, and carries the same properties as White Selenite/Satin Spar. 
Use Selenite to remove electromagnetic stress in and around your home. It works well to connect us to mother Earth and the Moon energies and cleanses the Sacral chakra. When you need a boost of self-esteem, a greater sense of well-being, or a dose of creativity, reach for white or Orange Selenite. It’s a great crystal to keep morale up in the workplace or at home.  Selenite is said, also helps one to feel safe and secure, especially at night. It  is used for good luck and protection. The powerful vibration of Selenite can clear, open, and activate the Crown and Higher Chakras and is excellent for all types of spiritual work. 
Selenite can also be used to strengthen the memory.A protective stone, Selenite is said  shields a person or space from outside influences. Selenite can evoke protection from the angelic realm and also dispels negative energy. Selenite is said it, calms and soothes, bringing a deep peace and sense of tranquility. Use Selenite in a grid around your home or in the corners of a room to create a safe and peaceful space. Meditating with Selenite aids in access to past and future lives. Selenite brings mental clarity, clearing confusion and revealing the bigger picture behind any problem.
Disclaimer
*please note that we donot make any claims just sharing years of knowledge of crystals and their properties*
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