Hemimorphite Oval Bead Strand | 12x5mm | Blue | 34 Beads |Blue Hemimorphite oval 16 inch bead strand for jewelry making. These blue Hemimorphite beads will be great for those earrings you make or to add sparkle to a pendant. They are beautifully cut to catch the light from every direction. In the early 19th century, the British mineralogist James Smithson discovered that the zinc ore then known as calamine was composed of hemimorphite and smithsonite. These minerals, along with hydrozincite, are, in fact,