Kunzite (variety of Spodumene)

Physical Properties

Hardness: 6.5-7.0 (Mohs scale); Color: Pink to lilac/violet; Luster: Vitreous (glassy); Crystal structure: Monoclinic; Cleavage: Perfect in two directions; Specific Gravity: 3.16-3.20.

Formation & Geological History

Formed in lithium-rich pegmatites during the late stages of magma crystallization. It is often found associated with other lithium minerals like lepidolite and tourmaline in volcanic igneous host rocks.

Uses & Applications

Primarily used as a gemstone for jewelry and as a specimen for mineral collectors. Some lower-grade spodumene is an ore of lithium, which is used in batteries.

Geological Facts

First discovered in California in 1902 and named after George Frederick Kunz, the chief gemologist at Tiffany & Co. It is pleochroic, meaning it can show different colors when viewed from different angles.

Field Identification & Locations

Identify by its characteristic pink/lilac hue, splintery fracture, and strong pleochroism. Found in Brazil, Afghanistan, Madagascar, and the USA (California). Warning: Exposure to strong sunlight can cause the color to fade over time.

Identified on: 4/13/2026

Mode: Standard