Chevron amethyst forms when violet amethyst and white quartz grow together in alternating zones

primarily hematite and magnetite

each with a long history in protective and grounding traditions

thanks to Social Media

as opposed to the banding you see in agate

Black Tourmaline Faceted Microbead Necklace November Birthstone Chevron amethyst forms when violetA strand of black mineral lighteach microbead faceted so the necklace catches light despite the stone's opacity. Black Tourmaline (Schorl) is a boron silicate mineral, Mohs 77. 5. Despite being opaque rather than translucent, the facets on each microbead catch direct light and produce a subtle surface shimmerthe effect is understated but present, unlike a smooth bead which reads as pure matte black. The beads are strung collar length. Major sources