
tourmaline
Tourmaline is a colorful mineral known for its wide variety of hues, from pink and green to blue and black. It forms in crystals with a complex structure that allows it to display multiple colors within a single stone, a phenomenon called pleochroism. Found in many locations worldwide, tourmaline is valued both as a gemstone in jewelry and for its metaphysical properties, believed by some to promote healing and balance. Its durability and vibrant colors make it popular among collectors and jewelers alike.