| Weight | 5.25 ct |
|---|---|
| Dimensions | 12.4 × 10.8 × 4.5 mm |
| Variety | Chrysoberyl |
| Treatment | unheated |
| Color | Green to orangish color change |
| Mining Location | nivithigala village around mining in Sri Lanka |
Natural Alexandrite Sixling Chrysoberyl Crystal 5.25 ct – Unheated Color Change from Nivithigala, Sri Lanka
Stone Identity & Quality
This 5.25 carat natural alexandrite crystal belongs to the chrysoberyl family and originates from Nivithigala village around mining in Sri Lanka. The specimen remains completely unheated and untreated, preserving its original geological structure.
Color & Visual Characteristics
Under daylight conditions, the crystal shows a green body color. When exposed to warmer or incandescent lighting, it shifts toward an orangish tone, demonstrating the alexandrite-type color change. The transition is natural and dependent on light source.
Internal & External Features
This specimen displays a rare sixling twin crystal formation — an uncommon structural phenomenon in chrysoberyl. Natural growth marks, surface textures, and intersecting crystal planes are clearly visible, confirming authenticity and untouched condition.
Cutting & Treatment Potential
Due to its sixling formation and collector value, this crystal is best suited as a mineral specimen rather than faceting material. It remains unheated, and no treatments have been applied.
Source & Ethical Position
Directly sourced from Nivithigala village around mining in Sri Lanka through established local connections.
Short FAQ
* What is a sixling crystal?
A sixling is a rare twin crystal formation where multiple crystal segments grow together symmetrically.
* Does this stone show real alexandrite color change?
Yes, it shifts from green to orangish tones depending on lighting conditions.
* Is the stone treated?
No. It is completely natural and unheated.
* Is this suitable for cutting?
Due to its twin structure, it is best preserved as a collector specimen.
* Where was it mined?
Nivithigala village around mining in Sri Lanka.
