All bismuth crystals are man-made, and the "ultra rainbow" effect is produced by reached a very specific molten temperature, then cooling the molten metal at a very specific rate, causing it to oxidize in a unique way once solid.
Bismuth is a heavy metal but has incredibly low toxicity and is safe to handle. Each piece shows a lot of natural variation (including some minor flaws), and which piece you receive when ordering online will be intuitively chosen for you. Bismuth is a a very soft metal, so these crystals are fairly delicate. We will package them as carefully as possible, but they can still get damaged en route.
Bismuth is thought to be stimulating and help high-achievers meet their goals. We like it 'cuz it's rainbow 🏳️🌈
