Tumbled stones are the way in which most people purchase stones for healing purposes. They are polished from fragments of crystals and minerals which have been broken naturally or by force. This is a lengthy process, taking several days whereby the minerals are tumbled in a series of large revolving drums full of grit and sand in varying grades and sizes, each adding a smoother and finer finish to the stone. This is an excellent way of ensuring that nothing given by the Earth is wasted! Use in healing to lay upon the body; or as carry or pocket crystals; or as smaller smooth meditation or gridding pieces.