Pietersite

Physical Properties

Hardness: 6.5-7 (Mohs scale), Color: Swirls of blue, gold, and red, Luster: Silky/Chatoyant, Crystal Structure: Trigonal (as Quartz), Cleavage: None/Conchoidal fracture, Specific Gravity: 2.64-2.71

Formation & Geological History

Formed through the brecciation of tiger's eye and hawk's eye, where fragments were later re-cemented by silica. Primarily found in Namibia and China.

Uses & Applications

Mostly used in fine jewelry (cabochons), as metaphysical stones, and as high-end collector specimens due to its limited availability.

Geological Facts

Known as the 'Tempest Stone' because its swirling patterns often resemble a storm. It was discovered by Sid Pieters in Namibia in 1962.

Field Identification & Locations

Identify by its unique 'chatoyant' shimmer that appears to move as the stone is tilted. It is distinctly brecciated (fragmented and re-joined) compared to the linear bands of standard Tiger's Eye.

Identified on: 4/29/2026

Mode: Standard