Approximately 2cm
Selenite is a stone of mental clarity. This clarity enhances mental flexibility and enables strong decision-making abilities. Selenite is also a stone of truth and honesty. This promotes good business practices as well as honesty in other types of relationships. Though Selenite is associated with the moon, it is also a sweet angel stone. It is used for contacting and communication with angels for guidance. It can also be used for finding and working with other spirit guides.
These stones are assorted, what you get is what you get, and are sold individually.