Black Obsidian Crystal Bracelet Amethyst and a blank postcard with

and a blank postcard with envelope

Known as the "Stone of Wisdom

A selenite grid plate - a round disc of translucent white satin-spar gypsum

light striking them together returns as a moving sheet of gold

the genuine stone known by its weight and its red streak

Black Obsidian Crystal Bracelet Amethyst and a blank postcard withObsidian 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