**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: This striking green Indicolite Tourmaline crystal presents an architectural presence rarely encountered in natural tourmaline specimens. Rather than forming as a single uninterrupted prism, the crystal reveals a remarkable stepped geometry composed of multiple rectangular and block like segments, stacked and interlocked along its vertical axis. This layered construction gives the piece a sculptural, almost engineered appearance, as if the crystal were assembled in stages rather than grown as a continuous column. The colour is a vivid emerald leaning green, enriched by subtle internal tonal variations that shift between fresh botanical green and deeper forest hues depending on the angle of light. These chromatic shifts interact beautifully with the crystal’s internal planes, where light is repeatedly reflected and refracted by the overlapping growth surfaces. The result is a complex internal visual depth that rewards close inspection. Natural growth boundaries are clearly visible throughout the crystal, marking successive phases of formation within the pegmatitic environment. These rectangular growth modules are not fractures or damage, but authentic crystallisation features, offering a rare glimpse into the dynamic conditions under which the tourmaline formed. Fine surface striations and preserved crystal faces further reinforce the specimen’s natural integrity and mineralogical authenticity. This piece stands out not for transparency alone, but for its structural narrative. It is a crystal that tells its geological story openly, displaying growth mechanics that are seldom so clearly expressed in tourmaline. Specifications: • Weight: 0.62 g • Weight in carats: 3.10 ct • Dimensions: 16 × 7 × 3 mm • Origin: Minas Gerais, Brazil • Mineral: Indicolite Tourmaline • Colour: Emerald green with subtle tonal zoning • Crystal habit: Stepped prismatic crystal with stacked rectangular growth segments • Transparency: Translucent • Lustre: Vitreous • Condition: Natural crystal Notable Points: • Rare stepped crystal architecture with clearly defined rectangular growth blocks • Multi phase growth structure visible along the entire crystal body • Emerald green colour with natural tonal depth and internal variation • Well preserved crystal faces and surface striations • Strong visual depth created by overlapping internal planes • Authentic growth boundaries rather than fractures or damage • Sculptural, architectural presence uncommon in Indicolite Tourmaline • Excellent mineralogical clarity for studying tourmaline crystallisation • Natural, untreated specimen in original crystal form • Distinctive collector piece due to structure rather than size alone Collector’s Interest: This specimen will appeal particularly to collectors who value crystallographic character and growth complexity over conventional aesthetics alone. Its stepped, modular formation places it among tourmalines that are appreciated as mineralogical studies as much as display pieces. The combination of emerald green colour and architectural crystal development makes it a distinctive addition to any serious tourmaline or pegmatite focused collection. Lapidary Potential: While best appreciated as a natural crystal specimen, selective lapidary use could be considered for designers interested in unconventional forms. The stepped geometry and colour zoning could inspire bespoke cuts that preserve sections of the crystal’s architectural identity, though its strongest value remains in its untouched, naturally sculpted state. —————— 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. 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