Don’t forget them outside on your windowsill or on your balcony because if you fall asleep they’ll be exposed to the sun in the morning and the colours of your amethysts will fade. So especially if you sleep until midday, remember to take them inside before going to bed. Definitely not speaking from experience, nope.
Ugh yes this has happened to me so many times 😧 also if you leave them outside at any time, careful that it doesn’t rain. Some crystals are water soluble!