RAREST Herkimer Diamond — 6.30 carats Exceptional clarity...

This natural 6.30-carat Herkimer Diamond stands out immediately for its spectacular crystalline architecture, its transparency, and above all for the extraordinary richness of its inner world. With its dimensions of 13.5 × 10.4 × 6.5 mm, the specimen concentrates a multitude of details in an extremely small volume: geometric faces, natural terminations, windows of high transparency, dark punctuations, veils and internal structures seem to superimpose at different depths. Macro photography reveals this fascinating contrast between a luminous crystalline envelope and a much more complex core particularly well, giving almost the impression of observing a mineral landscape imprisoned in stone. Depending on its orientation, certain structures become silvery, others disappear into transparency, while new details emerge under the effect of light. This combination of bidirectional morphology, transparency, brilliance, and highly developed internal architecture gives this piece a particularly singular identity. Despite the historical name “Herkimer Diamond,” it is not a diamond in the mineral sense, but a rare bidirectional quartz specimen sought after for this remarkable natural crystallization. Characteristics - Commercial / collection name: Herkimer Diamond - Mineral nature: Bidirectional quartz - Origin: Pakistan - Weight: 6.30 carats - Dimensions: 13.5 × 10.4 × 6.5 mm - Morphology: Natural bidirectional crystal - Color: Colorless to crystalline - Transparency: High with complex internal zones - Luster: Vitreous and very bright - Terminations: Natural - Inclusions: Numerous inclusions and natural internal structures - Particularities: Veils, dark punctuations, fractures and growth planes visible - Interest: Mineral collection, crystallography, natural inclusions, macro photography An extraordinarily rich internal architecture One of the main attractions of this piece lies in its inner world. Through the most transparent zones, numerous elements arranged on multiple levels appear. Tiny dark punctuations seem to float in the matter, accompanied by veils, internal fractures, and reflective planes. This organization gives a striking sense of depth. Some structures only become visible by slight rotation of the crystal. Light then meets an internal plane and suddenly produces a silvery gleam before disappearing a few degrees further. The specimen is therefore never visually static: its appearance continually evolves with the viewing angle and lighting. A fascinating natural geometry The silhouette is another remarkable element of the piece. Its flat faces, edges and terminations give it a geometry so pronounced that at first glance some people might almost imagine human intervention. Yet this is its natural crystal morphology. This is precisely one of the reasons why high-quality bidirectional crystals have fascinated collectors for so long: nature spontaneously produces volumes with an extremely elaborate geometric organization. On this piece, this geometry is particularly interesting to observe in profile, where several large faces converge toward the extremities and outline an almost architectural silhouette. The rarity of bidirectional growth Double termination involves particular growth conditions. Unlike a crystal whose one end remains attached or constrained by its matrix during development, a bidirectional crystal must benefit from an environment allowing both ends to grow. This peculiarity helps create these immediately recognizable crystal forms. When paired with beautiful transparency and such expressive internal architecture, the morphology becomes particularly interesting for the collector. Here, the combination is remarkable: double termination + transparency + natural geometry + visible inclusions + intense luster. Inclusions: the specimen’s individual signature The interior of this piece is far from uniform, and that is precisely what gives it a large part of its character. Many small dark inclusions punctuate certain zones of the crystal. Around them appear lighter structures, veils, and reflective surfaces. Under magnification, this complexity becomes spectacular. These elements form, in a way, the mineralogical fingerprint of the crystal. Two specimens may have similar weight or dimensions, but their internal organization will never be exactly identical. Each crystal thus preserves a unique signature arising from its growth history. A true miniature mineral landscape With only 13.5 mm in length, this specimen contains an impressive amount of visual information. Seen with the naked eye, it first attracts with its brightness and geometric form. Under magnification, it completely changes dimension. The inclusions gain depth, fractures become reflective surfaces, and the different layers seem to form tiny landscapes superimposed. Under macro photography or microscopic observation, some regions may even give the impression of a succession of cavities, crystals, and structures nested within each other. It is a piece that truly rewards extended observation. A geological story frozen in crystal A natural crystal results from a growth process that may have undergone different phases. Physicochemical conditions in its environment can evolve: temperature, pressure, fluid composition, or space availability can change gradually. Interruptions or variations in growth can then leave different traces in the material. Veils, fractures, inclusions, and observable structures today are thus elements contributing to the specimen’s history. This piece has the particularity of making part of this complexity directly observable through its transparency. A few millimeters of crystal thus become the tangible testimony of a geology that is vastly older. The history of the name “Herkimer Diamond” The name “Herkimer Diamond” has a special history in the world of minerals. It originates from the famous bidirectional crystals discovered in Herkimer County and surrounding areas, in New York State. Their remarkable transparency, brilliance, and naturally highly developed geometry gave them a sufficiently spectacular appearance to be compared to diamonds. The designation then became extremely well known among crystal enthusiasts and collectors. Bidirectional crystals with comparable aesthetics also exist in other parts of the world; that is why the exact origin of the specimen is specified separately in its characteristics. A particularly photogenic piece This piece also holds notable merit for macro photography. Against a dark background, its bright edges stand out strongly while its transparent zones allow a detailed view of the interior to be preserved. Directional lighting will enhance reflections and internal structures. More diffuse lighting will, on the other hand, emphasize transparency and better appreciate the overall geometry. By simply rotating the specimen, it becomes possible to obtain radically different compositions with the same stone. A piece for a discerning collector This specimen combines several qualities that define the appeal of collectible bidirectional crystals: spectacular natural morphology, significant luster, beautiful transparent windows, and especially an exceptionally rich internal architecture. But its true personality lies in the contrast between the two. From the outside, it appears geometric, luminous, and almost architectural. Inside, it becomes complex, chaotic, and extraordinarily detailed. That very opposition is what makes the piece fascinating: behind a few seemingly perfect crystalline faces lies an universe of natural structures to explore from different angles. An exceptional natural 6.30-carat Herkimer Diamond, remarkable for its bidirectional morphology, its brightness, and its extraordinary internal richness — a true piece of mineralogical contemplation where each orientation reveals new details. General Terms of Sale – MineralsOpals: At MineralsOpals, your satisfaction is an absolute priority. All orders are treated with the utmost care, from stone selection to final shipment. - Shipping & timelines: Shipped within 1 to 3 business days maximum, typically the day after the order. Shipped Monday to Friday (excluding weekends and public holidays). Each package is sent via La Poste with a tracking number provided. Careful packaging: each stone is individually protected, then placed in a secure rigid carton. - Warranty & customer service: 100% of shipments are guaranteed: in case of issue, we always find a solution. You buy with complete confidence: full reimbursement, replacement, or a goodwill gesture in case of loss or verified problem. If you have questions, doubts, or a specific request, you can contact me at any time, and I will respond gladly as soon as possible. Trust & commitment Each stone is photographed with care to reflect its natural beauty. You benefit from personalized tracking. My goal: to offer you a reliable, humane, and transparent purchasing experience. Thank you for your support. Do not hesitate to check out our auction listings to discover other exceptional products and follow us to stay informed about our new offers."

Utropspris:SEK 11.2

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