RARE lot of 3 Herkimer Diamonds — 5.33 carats Exceptional...

Exceptional lot of three natural Herkimer Diamonds, bringing together three biterminated crystals averaging about 9 mm, selected for their remarkable geometry, transparency and the diversity of their internal architectures. Each specimen presents a distinct crystalline silhouette, with naturally developed terminations and a succession of bright faces giving almost the impression of faceting work. Their observation reveals, however, the full complexity of a completely natural growth: clear zones, internal veils, growth planes, reflective microfractures and inclusions compose three different mineralogical landscapes. The contrast between their small size, their strong crystalline definition and the richness of their internal structures makes this set particularly interesting for collection and magnification observation. With a total of 5.33 carats, or about 1.78 carats per specimen, this lot constitutes a remarkable set of three exceedingly rare biterminated quartz specimens, known in collections under the name “Herkimer Diamonds” for their natural geometry and characteristic brilliance. Characteristics - Collection name: Herkimer Diamonds - Number of specimens: 3 - Mineral nature: Natural biterminated quartz - Origin: Pakistan - Total weight: 5.33 carats - Average weight: ≈ 1.78 carats per specimen - Average dimensions: About 9 mm - Morphology: Natural biterminated crystals - Color: Colorless, with very light internal nuances depending on the specimen - Transparency: Transparent to locally translucent - Luster: Intense vitreous - Terminations: Natural and well developed - Internal structure: Complex, different for each of the three individuals - Peculiarities: Growth planes, veils, natural microfractures and inclusions - Interest: Mineralogical collection, crystallography, loupe observation and macrophotography Three crystals with distinct personalities The strength of this lot lies in bringing together three crystals with comparable morphology while remaining perfectly individual. The first offers a particularly turbulent internal architecture, with many planes and structures visible through its transparent faces. The central specimen presents a very balanced silhouette and a clearly developed termination. Its transparency reveals a succession of internal structures that overlap in depth. The third stands out with a particularly spectacular geometry: its large reflective faces and its more minimalist architecture create a very aesthetic natural mirror play. Together, they allow appreciating three variations of the same biterminated crystallization. A fascinating natural geometry The almost faceted appearance of these crystals is one of their most remarkable features. The tips, edges and flat faces visible on the specimens are linked to their natural crystal development. Their geometry can thus evoke small cut stones while their architecture was built naturally during formation. Under directional light, the different faces illuminate successively and produce strong white and silver reflections. Unique internal structures The beauty of these specimens is not limited to their outer silhouette. Their transparency allows visually exploring their interior and observing numerous structures: veils, natural fractures, small reflective planes and inclusions trapped during growth. These features should not necessarily be considered imperfections: in a mineralogical collection specimen, they also constitute part of its formation history. Each crystal thus has a true internal signature impossible to reproduce exactly. A geological story written into the matter Crystal formation is a progressive process during which its environment can evolve. Physicochemical conditions, growth episodes or disturbances in the medium can leave visible traces inside the crystal. This is precisely what makes observing these three specimens particularly interesting: each preserves a different internal organization despite a generally related morphology. Under a loupe or macro objective, details almost invisible to the naked eye become genuine miniature crystalline landscapes. The history of the “Herkimer Diamond” The designation “Herkimer Diamond” is historically associated with the famous biterminated crystals discovered in the Herkimer region, in New York State. Their high transparency, vitreous luster and especially their astonishing natural geometry led to comparisons with diamond. These crystals have gradually become emblematic in the world of collectible mineralogy. Comparable biterminated crystallizations are also found in different regions of the world. The historical label must therefore be distinguished from the actual geographic origin of the specimens: the exact provenance of this lot is stated in the characteristics. A coherent set for the collection With an average dimension of about 9 mm, the three specimens show a beautiful visual coherence. They can be kept together to form a small comparative series or observed individually to study morphology and growth differences. The total weight of 5.33 carats corresponds to an average of about 1.78 carats per crystal. This dimensional homogeneity, coupled with different architectures, gives the lot a true aesthetic unity. Remarkable under magnification These crystals take on a new dimension when viewed under a loupe. The apparently transparent zones then reveal fine structures, while internal planes intermittently capture light and create minute glints. In macrophotography, each specimen can produce very different compositions: exterior geometry, optical depth, inclusions and reflections become subject matters. A singular mineralogical lot This lot finally brings together three natural biterminated crystals, each with its own identity, while maintaining a remarkable overall coherence. Their interest lies in this combination of exterior geometry, transparency and internal richness: behind their almost perfectly drawn silhouettes lie three natural architectures far more complex than they appear at first glance. With 5.33 carats total, about 1.78 carats per specimen and an average dimension close to 9 mm, this set constitutes a very nice selection for the collector who appreciates expressive natural crystallizations and specimens whose every detail deserves study. Three biterminated crystals, three growth histories and three natural architectures united in a single collection lot. General Terms of Sale – MineralsOpals: At MineralsOpals, your satisfaction is an absolute priority. All orders are handled with the utmost care, from stone selection to final shipping. - Shipping & delivery: Shipped within 1 to 3 business days maximum, typically the day after the order. Shipping 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 protected individually, then placed in a secure rigid box. - Guarantee & customer service: 100% of shipments are guaranteed: in case of any issue, we always find a solution. You buy with confidence: full refund, replacement or courtesy gesture in case of loss or proven problem. If you have questions, doubts or a specific request, you can contact me at any time; I will gladly respond as soon as possible. Trust & commitment Each stone is photographed with care to reflect its natural beauty. You benefit from personalized tracking. My goal: offer you a reliable, human and transparent shopping experience. Thank you for your support. 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Schätzpreis:€3

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