Bicolour tourmaline Crystals - Height: 15 mm - Width: 9 mm- 12 g - (1)

Bicolour tourmaline crystals are fascinating gemstones that exhibit two distinct colors within a single crystal, a characteristic that greatly enhances their desirability and aesthetic appeal. Tourmaline is a boron silicate mineral widely appreciated for its color diversity, which results from varying chemical compositions involving elements like iron, manganese, and lithium. Bicolor tourmaline typically shows a gradient from one color to another, such as green to pink or yellow to green, formed through subtle changes in the crystal's growth environment. This property is valued both in mineral collecting and in the jewelry industry, where the natural separation of colors creates dramatic and unique pieces. The small yet well-defined crystals often reflect tourmaline’s distinctive elongated trigonal form and excellent clarity, making them excellent examples of natural mineralogical beauty.