My name is Stefan, and I make and sell Bismuth crystals. I've sold to museums, colleges, universities, art galleries and collectors all over the world. I take pride in my craft, and it is my personal (and biased) belief that I produce the finest bismuth crystals available anywhere. Period.
Bismuth is element #83 on the Periodic Table of Elements. It is known as a post-transition metal. It has a relatively low melting-point of about 520 degrees F, which makes it easy to work with. Bismuth crystals form when the metal begins to cool from a molten state. The iridescent colors that bismuth crystals are known for are the result of an oxide tarnish.
Although it is relatively easy to make bismuth crystals, making high-quality crystals is a bit more difficult. First, you need several pounds of bismuth (99.99% pure). Second, a heating process. It can be done on a kitchen stove, but it is better to use a lab-quality heat plate so that you can control the temperature. Third is the extraction method. How you extract the crystals from the molten metal directly affects the types of crystals you create. Lastly, the cooling method. How quickly or slowly the crystal cools determines its colors.
Also, since I make them myself, there is no middle-man. I keep my prices low ($8 and up) and I ship world-wide. So far, I have shipped to 26 countries.
If you are interested in owning one, you can visit my online store here:[link]