Rare Tanzanite Crystal with Exceptional Pleochroic Properties 4.50 carats – GEMME quality - Height: 9.5 mm - Width: 8 mm- 0.9 g - (1)

Raw crystal of great intensity, revealing a marked pleochroism with shades varying from purplish blue to golden green depending on the angle of observation. Its natural structure, combining transparencies and crystalline reliefs, highlights the orientation of the optical axes characteristic of Tanzanite. Discovered exclusively in Tanzania, this gem remains one of the most emblematic gemological discoveries of the 20th century, its rarity being accentuated by its unique provenance in the world.

Features:

Weight: 4.50 carats
Dimensions: 9.5 × 8 × 6.5 mm (L × W × H)
Origin: Tanzania (Merelani Hills)
Color: Pleochroic – purplish blue with green and gold highlights
Crystallization / Form: Raw crystal, natural faces partially preserved

Particularities

Very marked pleochroism, alternating between blue, violet and yellow-green
Interesting transparency with saturated areas of color
A piece of great visual expressiveness, rare in unheated raw form

Conclusion:

A beautiful pleochroic rough Tanzanite, rich in optical contrasts, ideal as a collector's specimen or for display in a display case.


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