Approximate Size: 10mm diameter x 5mm thick. Please note the image at left may be larger than life to help show the fine details. Strand lengths are approximately 8 inches long and each strand contains approximately 19 beads. Average strand weight approximately 14 grams. These obsidian coins feature black color in an affordable and natural stone, unlike a great deal of the man-made and dyed materials misrepresented in today's markets as black "onyx".
Obsidian Gemstone Beads 10mm Coin