Dendritic Quartz set in 18k Gold frame on 18k Gold Chain. This lovely quartz gets its name from a Greek word meaning tree-like. These quartz are have tree- or fern-like inclusions of iron or manganese, called dendrites.  Dendrites are very thin tree like inclusions of iron, manganese, or other metallic oxides that grow in a natural fracture. Most often they are in clear or milky quartz and the dendrites are black, red or brown. Due to the natural formation, no two pendants are alike.