Black Obsidian Crystal Bracelet Bead Size:10mm As hard as any stone

As hard as any stone in the range

Deepens meditation and clarifies purpose

Honest naming: most solid black onyx is colour-stabilised chalcedony

Smoky quartz - clear crystal darkened to woodsmoke brown by natural radiation deep underground

traded along some of the earliest routes on record

Black Obsidian Crystal Bracelet Bead Size:10mm As hard as any stoneObsidian a pure glassy black that holds light like still water, not a crystal but volcanic glass, lava cooled too fast. Edged sharper than steel when it breaks. From Mexico, strung on elastic cord. It has no crystal structure at all lava so rich in silica it froze before crystals could form. That is why it breaks in the curved, razor edged fractures called conchoidal, and why a thin edge glows translucent brown against the light. That edge made it the