霓虹绿色碧玺 • 0.50 克拉 • 非凡透明度与卓越彩虹光泽 - 高度: 4.5 mm - 闊度: 4 mm- 0.1 g - (1)

DESCRIPTION:
Few natural tourmaline crystals combine such vivid colour, optical luminosity and clearly preserved crystallographic architecture within a single specimen. This remarkable green Elbaite from Minas Gerais immediately attracts attention through its intense Neon Green colouration, excellent transparency and exceptionally bright vitreous lustre.

The colour is fresh, luminous and highly expressive, ranging from crystalline Mint Green to a stronger Neon Green depending on the direction and intensity of illumination. Under neutral light, the specimen presents a refined pale green body with excellent internal visibility. When exposed to stronger directional or transmitted light, the colour becomes considerably more vivid, producing an energetic green glow throughout the entire crystal.

Its transparency is one of the defining qualities of the specimen. Light penetrates deeply through the crystal body, illuminating its internal growth architecture and creating a remarkable sense of depth. Rather than appearing visually flat, the crystal reveals successive internal planes, delicate natural inclusions and reflective structures that become progressively visible as the specimen is rotated.

The crystal develops as a naturally compact prismatic form with well defined vertical faces. These prism surfaces preserve numerous fine longitudinal growth striations extending parallel to the crystal axis. Under directional illumination, the striations capture and reflect light individually, producing bright linear flashes that emphasise the natural geometry of the prism.

Across the crystal body, several horizontal growth structures intersect the vertical striations. Together, these features create an attractive architectural pattern resembling transparent layers suspended within the green crystal. This interaction between longitudinal and transverse growth structures gives the specimen exceptional visual complexity while preserving excellent transparency.

Viewed through the base, the natural trigonal architecture of tourmaline becomes especially evident. The triangular cross section reveals the internal organisation of the crystal from a completely different perspective and provides a direct view into the arrangement of its growth zones.

One of the most fascinating optical characteristics visible through this orientation is the presence of delicate iridescent spectral reflections. These rainbow flashes are produced as light interacts with internal fissures and reflective growth surfaces, separating into multiple colours and creating small areas of blue, violet, green, yellow and pink brilliance within the crystal. This phenomenon is not pleochroism, but an iridescent optical effect generated by the interaction of light with the internal structure.

The natural inclusions contribute further character and geological authenticity. They remain suspended within an otherwise highly luminous crystal body, interacting dynamically with the surrounding transparency and generating additional reflections without obscuring the vivid green colour.

Its strong vitreous lustre is visible across the principal prism faces and along the naturally developed edges. As the crystal rotates, these surfaces produce sharp flashes of reflected light, reinforcing both the transparency and the crisp geometry of the specimen.

Originating from Minas Gerais, Brazil, one of the world’s most celebrated sources of gem quality Elbaite, this crystal brings together intense Neon Green colour, excellent transparency, prominent growth striations, trigonal crystallographic structure and captivating iridescent internal reflections.

This is a highly expressive natural tourmaline whose visual identity is defined by the harmonious interaction of vivid colour, transparency, crystallographic architecture and light.

SPECIFICATIONS:
• Weight: 0.10 g
• Weight in carats: 0.50 ct
• Dimensions: 4.5 × 4 × 4 mm
• Origin: Minas Gerais, Brazil
• Mineral species: Tourmaline
• Variety: Elbaite Tourmaline
• Crystal system: Trigonal
• Form: Natural single crystal
• Crystal habit: Compact prismatic crystal
• Cross section: Natural trigonal architecture
• Colour: Mint Green to vivid Neon Green
• Colour distribution: Predominantly even throughout the crystal
• Optical behaviour: Strong green luminosity under directional and transmitted light
• Transparency: Transparent to highly translucent
• Lustre: Strong vitreous lustre
• Surface features: Fine natural longitudinal growth striations
• Internal features: Natural inclusions, growth structures and reflective internal fissures
• Iridescence: Localised spectral rainbow reflections visible through the base
• Treatment: None
• Condition: Natural, untreated crystal

NOTABLE POINTS:
• Exceptionally luminous Neon Green colouration
The crystal develops a vivid and energetic green appearance under stronger illumination.
• Excellent natural transparency
Light penetrates deeply through the crystal, revealing its internal architecture with remarkable clarity.
• Beautiful Mint Green expression under neutral lighting
The colour remains fresh, crystalline and visually refined without requiring intense illumination.
• Strong transformation under transmitted light
Backlighting activates a brighter Neon Green glow throughout the entire specimen.
• Clearly preserved trigonal cross section
The base reveals the characteristic triangular crystallographic structure of natural tourmaline.
• Delicate iridescent spectral reflections
Internal fissures and reflective growth surfaces generate attractive rainbow flashes when viewed from selected angles.
• Exceptionally developed longitudinal growth striations
Fine vertical lines extend across the prism faces and emphasise the natural growth direction of the crystal.
• Attractive horizontal growth structures
Transverse internal planes intersect the vertical striations and create a layered architectural appearance.
• Strong vitreous lustre
The natural prism faces produce sharp and brilliant reflections during rotation.
• Dynamic interaction with light
The specimen continually changes between transparent Mint Green, vivid Neon Green and localised spectral flashes.
• Natural inclusions preserving geological authenticity
Internal features provide direct evidence of the crystal’s entirely natural formation.
• Highly readable crystallographic architecture
The prism faces, striations, internal planes and triangular base collectively reveal the crystal’s growth history.
• Excellent visual depth
Successive internal structures create a layered appearance throughout the transparent green body.
• Untreated natural Elbaite
All colour, transparency and optical characteristics are entirely natural.
• Classic Minas Gerais provenance
Originating from one of the most renowned regions in the world for fine gem quality tourmaline.

COLLECTOR’S INTEREST:
Collectors of fine tourmaline crystals value specimens that reveal not only attractive colour, but also the crystallographic and optical characteristics responsible for their natural beauty. This crystal achieves that balance through its luminous Neon Green colour, excellent transparency and exceptionally readable internal architecture.

Its trigonal cross section, extensive longitudinal growth striations and layered internal structures provide considerable mineralogical interest. The additional presence of iridescent spectral reflections introduces a captivating optical dimension, allowing the specimen to reveal delicate rainbow flashes from selected orientations.

The combination of vivid colour, transparency, strong lustre and classic Minas Gerais provenance creates a highly appealing natural Elbaite for collectors focused on gem crystals, optical phenomena and preserved crystallographic form.

LAPIDARY POTENTIAL:
The crystal possesses attractive transparency and vivid green colour that could theoretically provide usable gem material. Carefully oriented cutting could potentially produce a bright green faceted stone with strong internal luminosity.

However, its current form preserves important natural characteristics, including the longitudinal striations, trigonal cross section, internal growth architecture and iridescent spectral reflections. These features would be permanently altered or removed through cutting.

Its value therefore extends beyond its possible use as gemstone rough. Preserved in its natural state, the crystal remains a complete mineralogical specimen in which colour, transparency, structure and optical behaviour can all be appreciated together.

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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.

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GemPulse Minerals