Septarian Nodule
Size: 3.6"
From: Utah
About Septarian Nodule: Septarian nodules are a unique and fascinating rock formation. These rocks are made up of several different mineral deposits, including calcite, aragonite, and limestone. Septarians are found all over the world and can be quite valuable. They get their name from the Latin word "septum," meaning "seven." This is because these rocks typically have seven different layers or colors in them.