Black Necklaces include materials such as Onyx, Brazilian Banded Onyx, Canadian Hyerstene, Black stone, Smokey Quartz, Sardonyx, Hematite, Zebra, Sesame and Dalmation Jasper, Sowflake Obsidian, Swarovski and Czech crystal, copper, dyed freshwater pearls, Bali, Thai Hill Tribe and sterling silver.