This cluster measures 3.6cm in length x 2.6cms across x 1.8cms high.

Bismuth is rarely found in nature in its elemental form. Of growing interest however, are laboratory grown Bismuth crystals. These crystals, while not natural, are nonetheless very interesting. The unique look that these clusters offer is really indescribable. Its colour consists of iridescent metallic yellow, pink, blue and green hues.

Of interest are the pseudocubic 'hopper' crystals that are always present on the laboratory produced specimens, they are only seen in the rarest of natural crystals. Hopper crystals are a unique crystallographic curiosity. Just the edges extend outward from the center of the crystal leaving hollow stairstep faces between these edges. The hopper crystals form due to the disparity of growth rates between the crystal edges and the crystal faces.