October 13, 2023
A ++ Grade IRRIDESCENT RED AND GREEN BISMUTH CRYSTALS
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A ++ High Grade 65 grams 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 at least 20 lbs 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. The piece is 4.3 cms by 3.2 cms by 1.7 cms in size. The specimen is from:Lab in Germany, Koln We do combined shipping on orders of two or more items ! is how it works: 1st Item at full shipping charges and each additional item at half the shipping charges. If you are interested we have a website at With over 2000 pieces Take a LQQK Thanx !! Sellers: Delight buyers. Get your own map of past buyers.
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