2 Neutral Crystal Towers

This is a set of two pretty crystal towers in neutral shades. I can't recall what minerals they are made of, but believe they might be forms of jasper. One measures a little shy of 3.5" tall and the other is almost 4" tall. Please keep in mind that crystals have natural imperfections, and polished crystals such as this also are not perfect. I always point out if there are true flaws that have developed after I purchased the item. I have many crystals listed, and you can bundle multiple for a better price. I am open to considering all reasonable offers.