**Complimentary Specimens** As a gesture of appreciation, every winning lot above €50 will include one extra mineral, added entirely free of charge. For each additional €50, another complimentary specimen will be added. ————- DESCRIPTION: Rising like a crystalline tower carved by the Earth itself, this indicolite displays an architecture that impresses even before one begins to analyse its colour. The crystal develops along an extraordinarily tall and elegant axis, with proportions that are rare for the species, maintaining a natural symmetry that gives it a sculptural, almost architectural presence. Under controlled light, the specimen reveals an absolutely hypnotising chromatic transition: the base plunges into a deep petrol-blue, saturated and intense, while the top erupts into a luminous, fresh green, an unmistakable signature of the finest pegmatites of Nuristan. The upper zone, with its light green shade, seems to capture and diffuse the light internally, showing a moist, vitreous brightness that contrasts with the darker, vertically striated blue section below. The natural growth planes and the subtly faceted termination reveal micro-transparencies that, when observed from the front, create an electric-blue internal column, as if the crystal possessed an illuminated core. This gradual fusion of green and blue, so clean, so natural and so well defined, is one of the most sought after phenomena among high-end tourmaline collectors. Nuristan in Afghanistan remains the world reference for indicolites of exceptional quality. The balance between saturation, brightness, transparency and crystal architecture is unmatched, and this specimen not only fits that standard of excellence but surpasses it through its extreme elegance and the expressiveness of its two colours. The dimensions are also impressive: a 32 mm crystal this thin, vertical and homogeneous is rare, especially with such tonal purity and with a well-preserved natural termination. Overall, this is a specimen of superior category, the kind that defines collections, rather than simply complementing them. A piece with character, visual strength and chromatic subtleties that only the noblest tourmalines can display. SPECIFICATIONS: • Weight: 1.00 g • Weight in carats: 5.00 ct • Dimensions: 32 × 5 × 5 mm • Main mineral: Indicolite Tourmaline • Colour: Deep blue transitioning to bright green at the termination • Transparency: Transparent to translucent • Form: Natural crystal, elongated prism • Origin: Paprok, Nuristan Province, Afghanistan • Quality: High collector grade • Additional features: Strong colour zoning with vivid terminal green and excellent vertical architecture NOTABLE POINTS: • Spectacular bi colour transition: deep petrol blue base rising into brilliant green • Exceptional 32 mm height with perfectly slender architecture • Strong vertical striations enhancing internal reflections • Natural termination with translucent green highlights • Premium indicolite colour, saturated, clean and highly sought after • Origin from Nuristan, Afghanistan, world class source of the finest tourmalines • Displays vivid colour under daylight and controlled LED • Ideal collector’s crystal: tall, elegant and structurally harmonious • Rare quality, very few crystals combine height, purity and such a sharp colour shift • Highly photogenic specimen, ideal for macro display COLLECTOR’S INTEREST: For tourmaline collectors, this morphology represents the pinnacle of the species: a tall, rectilinear crystal with well defined colours and a luminous termination that reflects the precise chemistry of Afghan pegmatites. Nuristan indicolites showing a clean blue to green transition are extremely sought after and constitute highlight pieces in collections dedicated to bicolours, classic pegmatites and aesthetic vertical crystal. LAPIDARY INTEREST: Although pieces of this quality are almost always preserved as mineral specimens, the intensity of the blue and the clarity of the green make it theoretically interesting for optical study and gemmological photography. The structural integrity and chromatic purity make it ideal for documentation, premium displays or reference collections. ————— Photography and transparency: All photos were taken under controlled light conditions, carefully selected to reproduce the most accurate natural colour of each specimen. No filters, colour enhancement, or artificial saturation were applied. The lighting setup uses a calibrated 5500K light source, which replicates neutral daylight and reveals the true tones and clarity of the mineral. Under weaker or more yellow indoor lighting, colours may appear slightly different, which is normal and expected. The purpose of this setup is to present each specimen exactly as it appears in balanced natural daylight, allowing buyers to appreciate its authentic colour and lustre without distortion. Identification and ethics: All specimens offered are guaranteed natural and as described. Their origin and mineral identification are provided with the most accurate and reliable information available. Every effort is made to ensure that each piece is presented with full transparency, avoiding any misleading details regarding its nature, treatment, or provenance. Shipping and handling: Orders are carefully prepared, with each stone individually protected and placed in a secure rigid box to ensure safe delivery. Shipments are made within 1 to 3 business days after payment confirmation, always with a tracking number provided to the buyer. Each order is handled with professional care from selection to dispatch, ensuring a smooth and trustworthy process. Customs and import taxes: Any customs duties, import fees, or local taxes applied by the destination country are entirely the responsibility of the winning bidder. These charges are not included in the auction price or shipping cost and are determined by the buyer’s local authorities. Guarantee and resolution: Customer satisfaction is a priority. In the event of any issue, such as loss, damage, or discrepancy, please contact us immediately through Catawiki’s messaging system. We will always find a fair and suitable solution, including refund, replacement, or other commercial arrangements whenever justified. Appreciation and commitment: We sincerely thank you for your trust and preference. Our goal is to continuously bring you some of the most beautiful, unique, and exceptional mineral specimens from around the world. Each piece is carefully selected for its quality and character, ensuring that every purchase meets the highest standards. Your satisfaction and confidence are our top priorities, and we will always strive to exceed your expectations with every order. With gratitude, GemPulse Minerals