Your designs will be the talk of the town when you use the Dakota Stones porcelain jasper 12mm square beads. Available in 8-inch strands, these beads feature natural patterns filled with burgundy, black, gray and cream colors. These beads feature a square shape with rounded edges. Porcelain jasper is a brecciated jasper found high in the Sierra Madre Mountains of Sonora, Mexico. It was found years ago on a gold claim. Metaphysically, porcelain jasper is said to be calming. Use these beads to accent darker designs.