Amethyst Crystal Quartz Tower with CalciteThis Amethyst crystal quartz tower with calcite is a stunning piece. Combining these two minerals creates a powerful focal piece to add to any space, at home or the office. Amethyst is a part of the Quartz family and comes in a range of purple hues. This gemstone is considered one of the world's most popular stones used in making beads, cabochons, tumbled stones, and many different types of jewelry. This tower also has calcite crystals mixed in with