Types of Jasper and How to Use Them Can you guess one of the few gemstones that is as old as Earth? Well, it’s none other than Jasper! If you have ever browsed for Jasper jewelry online, you must have found that this stone is not only unique and versatile, but it comes in a wide range of colors and patterns. You must be wondering about the chemical composition of jasper. Well, jasper is a form of chalcedony or microcrystalline quartz. We have got to cover a lot in this comprehensive guide about jasper stone, so, without further ado, let us start with the most basic question - What is Jasper?