Bicolour tourmaline Crystals - Height: 25 mm - Width: 5 mm- 15 g - (1)

Bicolour tourmaline crystals are notable for their striking dual coloration within a single crystal, resulting from changes in the chemical environment during formation. Tourmaline is a complex boron silicate mineral known for a wide variety of colors and crystal habits. The presence of two distinct colors in one crystal not only adds to its beauty but also makes it highly desirable among collectors and gem enthusiasts. This particular crystal, measuring 25 mm in height and 5 mm in width, exemplifies the delicate yet vibrant color zoning characteristic of bicolour tourmalines. Tourmalines are also valued for their pyroelectric properties and have been cherished since ancient times for use in jewelry. Their complex crystal chemistry contributes to a litany of colors, from pinks to greens, often within a single specimen. Such bicoloured crystals demonstrate the dynamism of mineral formation processes and are prized for both their scientific interest and aesthetic appeal.