Mookaite Jasper

Physical Properties

Hardness: 6.5-7 (Mohs scale); Color: Variegated shades of purple, cream, pink, yellow, and deep red; Luster: Vitreous to waxy; Crystal structure: Trigonal/Microcrystalline; Cleavage: None/Conchoidal fracture; Specific gravity: 2.63-2.65.

Formation & Geological History

Formed from the fossilized remains of radiolaria, tiny microorganisms with silica shells, which deposited on the seabed during the Cretaceous period (approximately 66-145 million years ago) and were later silicified.

Uses & Applications

Primarily used in jewelry, lapidary arts, cabochons, and as a decorative collector's stone. It is also highly popular in metaphysical and crystal healing communities.

Geological Facts

Mookaite is found only in one place in the world: the Mooka Creek area in the Kennedy Ranges of Western Australia. The name 'Mooka' is an Aboriginal word meaning 'running waters'.

Field Identification & Locations

Identify by its distinctive earthy color palette and porcelain-like finish when polished. In the field, look for brittle, multicolored sedimentary deposits near the Mooka Creek bed. It often exhibits 'landscape' patterns.

Identified on: 5/11/2026

Mode: Standard