This directory alphabetically arranged this beautiful pictures of stones accompanied admittedly short but precise definitions that have the advantage of treating the various action plans stones (spiritual, physical, etc ...). Its small size is convenient and allows to easily carry in your prospecting new mineral for example. Its major advantage is the presence of rare stones or even totally unknown on the market. Finally, this booklet focuses on the many specificities of certain stones (I denoted as many as 25 kinds of agate!). Concise, precise, nice to flick would do it only to please the eye. I recommend!