Bicolour tourmaline Crystals - Height: 25 mm - Width: 10 mm- 11 g - (1)

Bicolour tourmaline crystals are fascinating gemstones valued for their distinct dual coloration within a single crystal. Tourmaline is a complex boron silicate mineral that commonly forms elongated, prismatic crystals and exhibits a wide range of colors due to varying trace elements. The bicolor variety showcases two different hues blended naturally, often strikingly contrasting, which makes these crystals particularly prized among collectors and jewelry designers alike. Typically, these crystals are revered not only for their beauty but also for their intriguing growth conditions that cause color zoning during their formation deep within metamorphic or igneous rocks. A specimen around 25 mm in height and 10 mm in width, weighing approximately 11 grams, represents a tangible chunk of geology that embodies both scientific interest and aesthetic appeal, especially for those who appreciate mineralogical diversity and natural artistry.