Ametrine - Geode - 43x24x21 cm- 26 kg

Ametrine is a natural quartz variety that uniquely combines purple amethyst and yellow citrine colors within a single crystal, resulting from varying oxidation states of iron during formation. This ametrine geode, measuring 43x24x21 cm and weighing 26 kilograms, reveals a spectacular blend of these hues, highlighting the crystal's unusual bicolor appearance. Geodes like this one form inside volcanic rocks where mineral-rich waters deposit crystals in hollow cavities over time. The visual contrast between the yellow and purple sections makes ametrine highly prized by collectors and jewelers. Such specimens illustrate geological processes producing remarkable color zoning and crystal growth within the same mineral.