Psilomelane Dendrite - Naturally drawn by nature. 2 1/2" Wt: 10.90 gms. 28x42 mm. With leather adjustable necklace. A stone of plentitude. Helps heal nervous system. Stimulates circulatory system. Encourages the enjoyment of each moment. Use for problems with diabetes as well as the conversion of carbs effectively. Helps with cold congestion. Last photo shows similar on Sundance on sale at $99