Exceptional Blue Cap Tourmaline Crystal — Vivid Color Zoning - Height: 30 mm - Width: 4 mm- 1.3 g

Blue cap tourmaline crystals are prized among mineral collectors for their striking coloration and well-defined crystal form. This specimen is noted for vivid color zoning—a hallmark feature where distinct bands or caps of blue shade contrast with other parts of the crystal, making each piece unique. Tourmaline is a complex boron silicate mineral that comes in a variety of colors; cap tourmaline specifically refers to crystals with a colored cap that sharply contrasts with the crystal body beneath. Measuring 30 mm high by 4 mm wide and weighing 1.3 grams, this crystal highlights the highly sought-after color zoning effect, enhancing visual appeal. These sharp color contrasts result from changes in chemical composition during the crystal’s growth, reflecting geological conditions and processes. Such specimens are of interest not only to collectors for display but can also be used in jewelry designs emphasizing one-of-a-kind natural color effects.