8 October 2026 · 4 min read · Wildmoon studio
How to care for selenite (and why it hates water)
Most selenite sold in crystal shops is satin spar, a soft form of gypsum. Here is how to keep it looking its best.

Selenite towers, wands and charging plates are some of the most popular pieces we sell. Almost all of them are cut from satin spar, a fibrous variety of the mineral gypsum, which is why they have that silky, light-catching sheen.
Keep it dry
Gypsum is slightly soluble in water. A quick splash will not ruin a piece, but soaking it or leaving it in a steamy bathroom will dull the surface, round the edges and eventually leave it pitted. Never use selenite in a crystal elixir or bath.
Keep it gentle
Gypsum scores a 2 on the Mohs hardness scale, soft enough to scratch with a fingernail. Dust it with a dry, soft cloth or a make-up brush and keep harder stones from rubbing against it in a drawer.
Using a charging plate
Many people rest rings, bracelets and tumbled stones on a selenite plate overnight as a way of clearing them between uses. If you do, put jewellery on a dry plate and keep the plate away from windowsills that collect condensation.