Bicolour tourmaline Crystals - Height: 23 mm - Width: 7 mm- 9 g - (1)

Bicolour tourmalines display two distinct colors within the same crystal, often resulting from changes in the chemical environment during growth. Tourmaline is a complex boron silicate mineral known for its wide color range and crystal forms. These crystals measuring about 23 by 7 millimeters offer a fascinating glimpse into natural color zoning, which adds tremendous appeal to collectors and gem enthusiasts alike. Tourmaline crystals are typically prismatic with striated faces, and bicolour examples are prized for jewelry and mineral collections due to their rarity and vibrant hues. This specimen's size and weight make it a fine representative of natural tourmaline crystal growth phenomena, reflecting both geological processes and aesthetic qualities that define the species.