You can add large geometric style to your designs with the matte carnelian 30x40mm rectangle beads from Dakota Stones. Available in 8-inch strands, these rectangular beads feature smooth, rounded edges and streaks of warm red and yellow color. Carnelian is a translucent chalcedony or an A-grade agate that receives its warm tints from iron oxides. These beads have been tumbled to give them a matte finish and are large enough to be used as focal points in your designs. The most important carnelian deposits are found in Brazil, Uruguay, India and Madagascar. These beads are made from natural gemstones, so color may vary from bead to bead. Dakota Stones offers high-quality gemstones that are all useable in jewelry designs because every bead is checked to make sure they are cut and drilled correctly, that the finish is right and that the beads look distinct to their stone type.