Turritella jewelry is a fossil formed over 50 million years ago. Over time, the entire mass of fossils was silicified, forming the brown fossiliferous agate ( also known as chalcedony) that we know today as Turitella agate. The range of colors in Turritella comes in shades of gray, tan, white, and brown, with dark brown or black snail shell inclusions. Turritella makes beautiful jewelry that is quite attractive and appealing. There are many spiritual benefits of wearing Turritella gemstone jewelry. In addition, many people believe it has the ability to cure heart-related diseases and many other diseases.