Crystal trees are very decorative and make excellent gifts. The trees depicted here are representative of what we offer in what we call Extra Small (XS) size trees. All crystals and, therefore, all trees are different, especially the base with is always a natural crystal, often quartz, but the folliage will be similar in trees of the same size and type of stone. You can adjust the shape of the folliage as the stones are attached to the trunk and the base of trees with flexible wire.