Rubellite tourmaline Mineral Collection - Height: 7.5 cm - Width: 3.8 cm- 175 g - (1)

The formation of tourmaline is a fascinating geological story. It typically occurs in pegmatites, which form during the late stages of magma crystallization. As the magma cools, residual fluids rich in elements like boron, lithium, and aluminum concentrate. These fluids crystallize, forming tourmaline. The distinctive color zoning, reminiscent of a watermelon, results from variations in chemical composition during crystal growth. Changes in trace elements such as manganese create the pink core, while iron contributes to the green edge. This process, occurring over extended periods under specific temperature and pressure conditions, leads to the extraordinary bi-color tourmaline.