Our garden fairies seem to love sneaking into the house, so we have a variety of pretty stones for them. They seem to find clear quartz a little boring, but love spheres of amethyst, rose quarts, aqua aura, labradorite and anything glittery. As an ode to their outside environment we offer them malachite, jade and other green stones. Moonstone is a must. Citrine seems appreciated, too, with its glittery look. They also seem fond of soft Botswana agate and howlite, and anything "special" that comes our way. They don't seem to take kindly to very dark or red/orange colours. Not sure why, but they are rather seasonal in their likes and dislikes, so I try to match stones with the flowers of the season! They seem to particularly like to play with mini spheres!