Unheated Tanzanite Crystal Specimen from Tanzania – 10.88 carats

A striking unheated tanzanite crystal displaying soft violet to blue hues with excellent transparency and a beautifully elongated prismatic form. This specimen features well-defined vertical striations along the crystal faces and a natural multi-faceted termination, giving it strong visual structure and presence.

Unlike heated material, this crystal retains its natural color expression, showing subtle variation between pale violet and light blue tones depending on the angle. Internal features and light inclusions are visible, adding depth while still allowing light to pass through much of the crystal. A clean, elegant example of natural tanzanite in its unaltered state.

Location: Tanzania
Weight: 10.88 carats
Measurements: 23mm x 8mm x 5mm
Crystal System: Orthorhombic
Mineral Class: Sorosilicate (Zoisite Group)