The Agate family of crystals is one that includes literally hundreds of variations and colors and banding types. Overall it's very soothing to the emotions which helps alleviate stress while promoting peace of mind, so if you need some creative energy or emotional relief then this could be just what you are seeking!
Crystal Towers are usually tall polished or semi-polished points with a flat base. They can have four or more sides culminating in a point at the top. The sides are perpendicular to the base without a taper. This form is practical for display, amplifying intentions and channeling energy in one direction.