mineral

Lepidolite Ore

K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2

AI-generated identification · may be incorrect

Hardness: 2.5-4 (Mohs), Color: Lilac, pink, or gray/purple, Luster: Vitreous to pearly, Crystal structure: Monoclinic (often found in massive micaceous aggregates), Cleavage: Perfect basal (micaceous sheets)

Hardness: 2

Identified July 18, 2026More mineral →

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Physical properties

Formation & geological history

Formed in late-stage granitic pegmatites through the process of hydrothermal crystallization. It is often found associated with other lithium-bearing minerals like spodumene, amblygonite, and tourmaline.

Uses & applications

Primary source of lithium for industrial use (batteries, glass, ceramics), secondary source of rubidium and cesium. Also used for ornamental carvings, beads, and as a mineral specimen for collectors due to its unique color.

Geological facts

Lepidolite is known as the 'peace stone' in metaphysical circles due to its high lithium content, which is used in mood-stabilizing medications. It is the most common lithium-bearing mineral.

Field identification & locations

Identify by its distinctive lilac-to-purple hue and micaceous (shimmery, flaky) texture. It can be scratched with a penny. Commonly found in pegmatite districts such as Minas Gerais (Brazil), San Diego County (USA), and parts of Africa.