Unheated Gemmy Tanzanite Crystal from Mererani Tanzania – 70.01ct

Exceptional unheated tanzanite crystal displaying a refined blend of violet and soft blue tones, with excellent transparency and a highly gemmy interior. Light moves beautifully through the crystal, illuminating its natural internal features and giving the piece a lively, dimensional presence.

The crystal exhibits strong architectural growth, with layered internal planes and reflective faces that create depth and visual complexity. Subtle inclusions and natural growth patterns enhance its authenticity while maintaining an overall clean, high-quality appearance.

Tanzanite’s well-known trichroism is evident, with shifting hues depending on orientation and lighting. In its unheated state, this crystal preserves its natural color balance—something increasingly sought after by collectors.

Restoration Note:
This specimen has been restored. The front crystal was separated prior to acquisition and has been carefully reassembled to its original natural growth position. The alignment follows how the crystal formed in the earth, preserving both its structural integrity and aesthetic continuity.

With its impressive size, clarity, and sculptural crystal form, this is a serious collector-grade specimen that bridges the gap between fine mineral and some facet-grade potential.

Locality: Mererani, Tanzania
Measurement: 30mm x 15mm x 14mm
Weight: 70.01 carats
Crystal System: Orthorhombic
Mineral Class: Sorosilicate