Selenite is a fragile white crystal that is associated with cleansing spaces and healing energies.
The word selenite is borrowed from Latin selēnītēs. This was borrowed around 1567 CE during Early Modern English, and although there was a slight variation in spelling from silenite to silonite to our modern spelling selenite, there was no major change due to being borrowed so late compared to the evolution of English.
Selenite is also called satin spar or desert rose. These alternative names are based on the appearance of the crystal. When referred to as satin spar, it is usually in a rectangular, lengthy shape. The fibers of the mineral are exposed and easy to peel apart, and sometimes the pressure of holding the crystal is enough to break it. Desert rose, also being extremely fragile, is typically a rounded cluster that mildly resembles the folds of rose petals. While there is other colors to selenite, they are highly uncommon compared to traditional selenite.
Metaphysical properties of selenite includes protection. By placing selenite chunks around the house, you can create a grid to help create and maintain a peaceful environment.
Be careful with selenite around water- it dissolves when it gets wet.
Sources:
Hall, Judy. The Crystal Bible: A Definitive Guide to Crystals. Godsfield ; Distributed to the Trade Markets in North America by Walking Stick Press, 2004.
“Selenite, N. (1).” Oxford English Dictionary, Oxford UP, June 2024, https://doi.org/10.1093/OED/1130524611.