**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: As though shaped by a quiet tension deep within the Earth, this green kyanite crystal rises in a narrow, elongated form that reflects growth under sustained directional pressure rather than free expansion. Its silhouette feels disciplined and purposeful, the result of metamorphic forces favouring linear development over mass. The crystal does not seek symmetry or perfection, but instead records adaptation, confinement and persistence through form. Originating from Brazil, most likely the Morro Redondo area in Minas Gerais, this specimen belongs to one of the world’s most respected sources for green kyanite. Formed under high pressure metamorphic conditions, the crystal developed along a dominant axis, producing its characteristic blade like habit. Rather than expanding outward, the structure elongated vertically, with growth constrained laterally by surrounding mineral assemblages, a process clearly legible in the crystal’s geometry. The colour is a vivid, fresh green, shifting between apple green and yellow green tones depending on light orientation. Under direct backlighting, the internal structure becomes especially expressive, revealing zones of increased translucency and subtle internal variation that bring depth and vitality to the crystal. This optical behaviour is particularly evident in thinner sections, where light penetrates deeply and activates a luminous inner glow without obscuring natural growth features. Surface textures remain entirely natural. Longitudinal striations run consistently along the crystal faces, aligned with the growth direction and reinforcing the mineral’s anisotropic nature. These striations interact dynamically with light, creating linear reflections that change with viewing angle. The termination, while not sharply defined, is natural and consistent with kyanite growth habits, showing no evidence of cutting, polishing or mechanical damage. Rather than presenting itself as a flawless or decorative object, this kyanite offers a clear geological narrative. Its elongated habit, vibrant green colour and readable growth features combine to form a specimen that feels honest and expressive, preserved exactly as nature produced it. It stands as a refined example of Brazilian green kyanite, valued for character, structure and authenticity rather than surface perfection. SPECIFICATIONS: • Weight: 7.26 g • Weight in carats: 36.30 ct • Dimensions: 40 x 12 x 7 • Origin: Morro Redondo, Minas Gerais, Brazil • Mineral species: Kyanite • Crystal system: Triclinic • Crystal habit: Elongated prismatic to blade like crystal • Colour: Vivid green with yellow green nuances • Colour distribution: Uneven, with natural internal zoning • Transparency: Translucent to locally semi transparent • Lustre: Vitreous to slightly silky • Surface features: Natural longitudinal growth striations • Condition and treatment: Natural, unpolished, untreated NOTABLE POINTS: • Natural green kyanite crystal with elongated blade like habit • Probable origin from Morro Redondo, Minas Gerais, Brazil • Strong directional growth reflecting metamorphic pressure • Vivid green colour intensified under backlighting • Localised translucency revealing internal structure • Well developed longitudinal striations along crystal faces • Natural termination consistent with kyanite growth habits • No polishing, treatments or mechanical intervention • Clear anisotropic behaviour typical of kyanite • Excellent readability of growth and formation processes COLLECTOR’S INTEREST: For collectors, this specimen offers a compelling balance between colour, form and geological clarity. Green kyanite is less common than its blue counterpart, and well defined crystals of this length and integrity are increasingly difficult to source. The crystal’s elongated habit provides strong visual presence, while its natural surfaces and internal features reward close inspection. Its Brazilian origin further enhances its appeal, as Minas Gerais remains a benchmark locality for high quality kyanite. This piece suits collections focused on crystal habit, metamorphic mineralogy and minerals that express formation conditions through structure rather than perfection. LAPIDARY POTENTIAL: Although the crystal displays areas of translucency and attractive green colour, its primary value lies in its natural form. Kyanite’s strong directional cleavage and anisotropy already pose challenges for cutting, and any lapidary intervention would irreversibly compromise the crystal’s morphology and growth features. For this reason, the specimen is best preserved in its current state, where its geological story and structural character remain fully intact and legible. _____________ 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