Description: A remarkable three phase colour zoned Indicolite Tourmaline displaying an exceptionally preserved trigonal termination and an almost textbook prismatic crystal habit, where three distinct chromatic stages remain sharply defined within a single uninterrupted crystal. The specimen immediately distinguishes itself through the rare coexistence of flawless crystallographic preservation, elegant vertical architecture and an unusually refined sequence of natural colour evolution, creating a crystal of exceptional collector quality. The prism exhibits outstanding structural integrity from base to termination. Its sharply defined faces remain remarkably well preserved, allowing the crystal habit to be appreciated in its purest expression. Numerous natural longitudinal striations extend continuously along the entire prism, documenting uninterrupted crystallisation while enhancing the visual rhythm of the specimen. These finely preserved growth features interact beautifully with light, creating constantly shifting reflections that accentuate the crystal’s exceptional geometry. Perhaps the most captivating feature is its extraordinary three phase colour zoning. The basal section displays an intense Deep Petrol Green, appearing almost black under ordinary illumination while revealing its rich green character when penetrated by light. Above this, the crystal transitions into a beautifully translucent Petrol Blue central zone that dominates the body of the prism with remarkable elegance and internal depth. The crystal culminates in a vivid Olive Green termination enriched by delicate Yellowish Olive Green and subtle Lime Green nuances concentrated around the crystal head. Rather than abrupt colour boundaries, the specimen preserves a coherent geological record of changing chemical conditions throughout crystallisation, allowing each chromatic phase to remain individually distinguishable while maintaining perfect visual harmony. The transparency contributes significantly to the specimen’s visual appeal. Light penetrates deeply into the central Petrol Blue zone, revealing internal growth textures, natural inclusions and subtle structural features that enrich rather than diminish the crystal’s beauty. The internal architecture creates impressive depth while preserving excellent colour saturation across each growth stage. The termination is particularly noteworthy. Perfectly preserved and exceptionally sharp, it displays a highly readable trigonal growth geometry with pristine crystallisation surfaces remaining entirely natural and untouched. Such preservation is seldom encountered in crystals that simultaneously retain such refined colour zoning and well developed prism faces. The termination completes the specimen with remarkable symmetry and gives the entire crystal an almost ideal mineralogical appearance. Internally, the crystal preserves natural inclusions and growth structures that testify to its geological origin. These delicate internal features remain entirely consistent with natural pegmatitic crystallisation and contribute additional mineralogical interest without compromising the transparency or overall elegance of the specimen. Material from Minas Gerais has long been regarded among the finest Indicolite Tourmalines produced anywhere in the world. In this remarkable example, exceptional crystallographic preservation combines with sophisticated three phase colour zoning, superb transparency and an immaculate termination to create a specimen that represents both aesthetic excellence and outstanding mineralogical authenticity. This is a crystal whose appeal resides not in any single characteristic, but in the extraordinary harmony between colour evolution, structural perfection, transparency and natural preservation. Every aspect reflects the remarkable geological processes that produced one of the most elegant expressions of Indicolite Tourmaline. Specifications: • Weight: 0.54 g • Weight in carats: 2.70 ct • Dimensions: 15 × 4.5 × 4 mm • Origin: Minas Gerais, Brazil • Mineral species: Tourmaline • Variety: Indicolite Tourmaline • Crystal system: Trigonal • Form: Natural single crystal • Crystal habit: Elongated prismatic crystal • Colour: Deep Petrol Green, Petrol Blue and Olive Green • Colour zoning: Natural three phase colour zoning • Transparency: Translucent to locally transparent • Lustre: Vitreous • Surface features: Exceptionally preserved longitudinal striations • Termination: Perfect natural trigonal termination • Internal features: Natural inclusions and growth textures • Treatment: None • Condition: Natural intact crystal Notable Points: • Exceptional Three Phase Colour Zoning The crystal preserves three clearly distinguishable natural colour stages developed during crystallisation. • Immaculate Trigonal Termination The crystal head remains exceptionally sharp and perfectly preserved, displaying textbook crystallographic geometry. • Deep Petrol Green Basal Zone The lower section exhibits an intensely saturated green that appears almost black until illuminated. • Luminous Petrol Blue Central Section The body of the crystal displays a beautifully translucent Petrol Blue with remarkable internal depth. • Olive Green Crystal Head The termination develops attractive Olive Green tones enriched by delicate Yellowish Olive Green and subtle Lime Green nuances. • Extraordinary Prism Preservation The prism faces remain exceptionally sharp and coherent throughout the entire crystal. • Remarkable Longitudinal Striations Countless natural vertical growth lines extend uninterrupted from base to termination. • Excellent Transparency Light penetrates deeply into the crystal, revealing internal structure while preserving colour richness. • Natural Internal Growth Features Authentic inclusions and growth textures provide additional mineralogical character and geological evidence. • Outstanding Crystal Habit The elongated prismatic architecture displays exceptional balance and elegance. • Strong Optical Depth The interaction between transparency and colour zoning creates remarkable visual complexity under changing illumination. • Untreated Natural Crystal All colour, transparency and structural features are entirely natural. • Classic Minas Gerais Provenance Originating from one of the world’s most celebrated localities for fine tourmaline crystals. • Museum Quality Crystallographic Preservation The combination of perfect termination, preserved prism faces and exceptional colour zoning places this specimen among highly desirable collector examples. Collector’s Interest: Exceptional Indicolite Tourmalines are valued not only for their colour but also for the degree to which they preserve their original crystallographic architecture. This specimen combines several characteristics that rarely occur together: immaculate prism preservation, a perfectly developed natural trigonal termination, remarkable transparency and an exceptionally well defined three phase colour sequence. The crystal records a fascinating history of chemical evolution during its formation. The transition from the intensely saturated Deep Petrol Green basal zone through the luminous Petrol Blue centre and into the Olive Green termination provides a remarkably readable geological record while simultaneously creating an unusually sophisticated visual composition. Few natural crystals preserve such distinct chromatic evolution with this level of structural integrity. Equally impressive is the flawless preservation of the crystal habit itself. The abundance of sharply developed longitudinal striations, combined with the pristine termination and balanced proportions, gives the specimen a level of crystallographic elegance that immediately appeals to advanced collectors. For enthusiasts seeking premium Indicolite Tourmalines from Minas Gerais, this specimen represents an outstanding combination of rarity, beauty and mineralogical excellence. Lapidary Potential: Although the transparency and colour could technically permit gemstone cutting, the true importance of this specimen resides overwhelmingly in its preservation as a natural crystal. Any cutting or polishing would irreversibly destroy the immaculate trigonal termination, the exceptionally preserved prism faces, the remarkable longitudinal striations and the highly distinctive three phase colour zoning that defines the specimen’s identity. In its untouched state, the crystal preserves the complete integrity of its geological history, allowing its colour evolution, crystallographic perfection and natural growth features to remain fully observable exactly as nature created them ————- Shipping and Handling: All orders are shipped by Portuguese National Post and UPS. • Dispatch time: within 1 to 3 business days after payment confirmation to Catawiki • Transit time service: between 2 to 5 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