Eudyalite 10mmEudyalite the only gemstone in the trigonal cyclosilicates group. These are special rare gemstones that form in a series of rings, in this case shaped like prismatic triangles. They are most commonly found in Russia and the color is a real treat for the eyes. Eudyalite displays prominent shades of red, orange, and brown. Eudyalite can help with mental clarity, concentration, and decision making. Its an excellent stone to help inflammation. Natural