Septarian Flame | 253g Gem Tree Minerals started to sink in

Minerals started to sink in as the lava flowed across dykes and holes

Physical Attributes: found in a variety of colours such as yellow

Physical Attributes: The physical pattern of Crazy Lace Agate is completely unique consisting of large swirls

pyramidal structures

a Feldspar mineral that forms in short prismatic

Septarian Flame | 253g Gem Tree Minerals started to sink inWeight: 253g Size: H 80mm (All measurements are approximate.) Septarian, also known as Dragon Stone, is a three color concretion made up of limestone, which is grey, and aragonite, which is brown. The word "Septaria," which is used to describe any concretion with internal fissures or cracks, is where the name derives. During the Cretaceous Period of Earth's history, between 50 and 70 million years ago, this unusual mineral was produced. At that time,