A long time ago, The Stone Circle operated a market stall. We picked up a few crystals people would recognise to place on it, to compliment the rough, dirty, and newly unearthed Scottish crystals we were selling. One of the types of crystal we purchased was selenite. That's us finally uploading stuff from the stall.
I don't know where these came from. Selenite is a desert crystal so it wouldn't be mined. We can only guess.
These selenite sticks are said to be ideal for cleansing other crystals. They are salty and hot water soluble, so please don't put them in the dishwasher (it happens.)