In a variety of pinks and reds, this 5x12mm Rice Kona Dolomite strand is temporarily strung on a 16" strand ready to use for your beading projects. There are approximately 30 beads on a 5x12mm strand. Kona Dolomite A special variety of dolomite found in the Kona Dolomite rock formations of Marquette County, Michigan. The Lindburg Quarry has some of the best material, showing a highly brecciated and contorted appearance. Colors range from whitish to pink and reds. Easy to cut and polish with a hardness of 3.5 to 4.5. Used as an ornamental stone and prized by lapidaries in creating beautiful jewelry and carvings.