**Complimentary Specimens** As a gesture of appreciation only, winning lots with a final hammer price above €50 will include one small additional mineral offered entirely free of charge. —————- Description: This tourmaline presents itself as a crystalline micro architecture of remarkable refinement, as if a natural structure had been designed with intention rather than chance. Within its minimal size lies a sophisticated dialogue between form, colour and transparency, where two distinct crystal bodies appear fused into a single harmonious entity. The upper section rises in a saturated aurora green tone, dense and luminous, forming a natural domed cap that crowns the crystal with depth and intensity. This green zone carries internal reflections and subtle textural features that respond dynamically to light, giving the impression of movement suspended within solid matter. Beneath it, the crystal transitions seamlessly into a colourless to icy white body of exceptional clarity, allowing light to pass through cleanly and revealing the internal architecture with striking precision. The colour transition is gradual and organic, without abrupt boundaries, creating a visual flow that enhances the sculptural quality of the specimen. Despite its minimal size, the crystal conveys a sense of structural confidence, with sharp terminations, vertical striations and a well defined geometry that speaks of high quality growth conditions. This piece exemplifies how scale does not dictate presence. Its refined proportions, elegant colour zoning and architectural balance elevate it far beyond its physical dimensions, making it a specimen that rewards close inspection and thoughtful appreciation. Specifications: Weight: 0.14 g Weight in carats: 0.70 ct Dimensions: 6 × 5 × 3 mm Origin: Minas Gerais region, Brazil Mineral species: Tourmaline (Elbaite) Crystal form: Natural bicolour prismatic crystal, bicrystal growth Colour: Deep emerald green transitioning to colourless white Transparency: Transparent to translucent Lustre: Vitreous Surface and structure: Strong vertical striations with sharp natural terminations Condition: Natural, unpolished, untreated specimen Notable Points: • Distinct bicolour formation with aurora green upper cap and colourless lower body • Exceptionally clean colour transition without harsh zoning lines • Architectural crystal geometry with strong vertical striations • Natural domed green termination enhancing visual depth • High internal clarity in the lower colourless section • Luminous green saturation concentrated in the upper crystal body • Balanced proportions creating a unified bicrystal appearance • Well preserved natural surfaces and sharp edges • Elegant fusion of two crystal growth phases into one structure • Minimal size yet high visual and structural impact • Excellent light interaction revealing internal textures and zoning Collector’s Interest: This specimen holds strong appeal for collectors who value crystal architecture, colour zoning and natural growth aesthetics over sheer size. Its refined bicolour composition and sculptural balance make it particularly desirable for advanced collections focused on tourmaline morphology and colour transitions. The minimal size enhances its rarity factor, demonstrating how precision and elegance can outweigh scale in collector significance. Lapidary Potential: Although already a complete and compelling crystal specimen, this tourmaline also presents lapidary potential for those interested in creative applications. The material is already shaped by nature into a form suitable for custom jewellery concepts, such as a ring or pendant, where the natural green cap and transparent body could be showcased without further alteration. Its structural integrity and clarity support both preservation as a crystal and imaginative use in bespoke designs. —————- Shipping and Handling: All orders are shipped by Portuguese National Post. • Dispatch time: within 1 to 3 business days after payment confirmation to Catawiki • Transit time with CTT service: between 5 to 7 business days within europe and worldwide, depending on destination national post. • A tracking number is always provided Photography and transparency: All photographs are taken under controlled lighting conditions using a macro lens, carefully selected to present each specimen as accurately as possible. No filters, colour enhancement, or artificial saturation are applied. The lighting setup uses a calibrated 5500K light source, replicating neutral daylight to reveal natural tones, surface features, and internal characteristics. Under warmer or weaker indoor lighting, colours may appear slightly different, which is normal. The purpose of this photographic process is documentation and representation, not visual enhancement. Images are intended to reflect the specimen faithfully as it appears under balanced natural light conditions. Identification and ethics: All specimens offered are natural and described to the best of our knowledge, based on direct sourcing, professional experience, and information provided by trusted suppliers working at the origin. Every effort is made to ensure transparency and accuracy regarding identification, locality, and general characteristics, avoiding misleading statements about treatment, provenance, or nature. 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 important. In the unlikely event of an issue such as loss, damage, or discrepancy, please contact us promptly through Catawiki’s messaging system. Each case is handled individually and fairly, with appropriate solutions offered when justified. Appreciation and commitment: We sincerely thank you for your trust. Our work focuses on careful selection, accurate representation, and respectful presentation of mineral specimens with character and interest. Each piece is chosen for its individual qualities rather than speculative or financial considerations. We aim to provide a transparent, reliable, and consistent experience for collectors at all levels. With gratitude, GemPulse Minerals