Bloodstone Fine Tumbled Nugget Strand (Option 1) Approx. 16" long Bead Size : 15mm x 13mm to 40mm x 26mm Make this Gem Strand Into A Necklace Bloodstone is an opaque dark-green form of Chalcedony quartz with distinctive red spots, which are caused by the presence of iron oxide. Bloodstone is also known by the name Heliotrope, perhaps because in ancient times the color was reminiscent of reflections from the setting sun. The name bloodstone obviously comes from the resemblance to blood of the red Setting Sun, Iron Oxide, Ancient Times, Tumbling, A Necklace, My Jewellery, Dark Green, Different Colors, Gems