mineral

Kunzite (Spodumene)

Spodumene (LiAlSi2O6)

Hardness: 6.5–7 (Mohs). Color: Pink to lilac/violet. Luster: Vitreous to pearly. Crystal structure: Monoclinic (often prismatic/bladed). Cleavage: Perfect in two directions. Specific Gravity: 3.1–3.2.

Hardness: 6
Color: Pink to lilac/violet
Luster: Vitreous to pearly

Identified March 7, 2026More mineral →

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Physical properties

Formation & geological history

Formed in lithium-rich granite pegmatites. These igneous formations occur during the final stages of magma crystallization, often resulting in very large crystals. Generally found in Precambrian to Cenozoic aged formations.

Uses & applications

Primarily used as a gemstone in jewelry for its pleochroic properties. Spodumene is also an important industrial source of lithium for batteries, glass, and ceramics.

Geological facts

Named after George Frederick Kunz, the chief gemologist at Tiffany & Co., who first described it in 1902. It is highly pleochroic, meaning it shows different colors (from pale pink to deep violet) when viewed from different angles.

Field identification & locations

Identify by its distinct lilac color, vertical striations on crystal faces, and perfect cleavage. Commonly found in Afghanistan, Pakistan, Brazil, and the United States (California). Collectors look for deep saturation and clarity.