mineral

Lepidolite

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

Hardness: 2.5–3.0 (Mohs scale); Color: Lilac, pink, or violet-grey; Luster: Vitreous to pearly; Crystal structure: Monoclinic; Cleavage: Perfect basal (micaceous sheets); Specific Gravity: 2.8–2.9

Hardness: 2
Color: Lilac, pink, or violet-grey
Luster: Vitreous to pearly

Identified January 24, 2026More mineral →

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Physical properties

Formation & geological history

Formed in granitic pegmatites through the crystallization of lithium-rich magma during late-stage hydrothermal activity. It is often found associated with other lithium minerals like spodumene and tourmaline.

Uses & applications

Major source of lithium for batteries and mobile devices; also used in glassware, ceramics, and carved as decorative ornaments or tumbled for gemstones in the jewelry industry.

Geological facts

Lepidolite is often called the 'Peace Stone' in metaphysical circles due to its high lithium content, which is used in medical anti-anxiety medications. It was originally named 'lilalite' before being renamed after the Greek word 'lepidos' for scale.

Field identification & locations

Identify in the field by its distinct lilac-to-purple hue and 'scaly' or micaceous texture where tiny flakes reflect light. Commonly found in Brazil, Russia (Ural Mountains), Canada (Manitoba), and the United States (California and Maine).

Other mineral specimens

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Sandstone (with potential mineral staining/concretions)

Arenite (SiO2 based)

sedimentary

Epidote

Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)

metamorphic

Nephrite Jade

Nephrite

Mineral/Rock

Banded Gneiss (River Rock/Pebble)

Gneiss (specifically a banded variety often found as a river rock)

Metamorphic Rock

Green Apatite on Albite

Fluorapatite [Ca5(PO4)3F] on Albite [Na(AlSi3O8)]

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Epidote

Epidote - Ca2(Al2,Fe3+)3(SiO4)3(OH)

mineral