3.7" Honey Yellow Celestine (Celestite) Crystal Cluster - Poland

This is a 3.7" wide cluster of celestine/celestite crystals from the Machow Mine in Poland. The celestine has honey-yellow coloration and formed from a sulfur-rich matrix. These crystals are very different in both color and crystal shape from the commonly seen Madagascar celestine.

Celestine or celestite is a mineral consisting of strontium sulfate (SrSO4). Celestine tends to form attractive, well-shaped crystals often found inside of geodes and can be a variety of colors depending on impurities present during formation. One of the main sources of celestine is from the deposits on the northwestern coast of Madagascar. The world's largest known celestine geode is 35 feet (10.7 m) in diameter at its widest point and is located near the village of Put-in-Bay, Ohio. The geode has been converted into a viewing cave, Crystal Cave.