mineral

Lepidolite

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

Hardness: 2.5-4 on the Mohs scale, Color: Lilac, violet, pink, or gray, Luster: Pearly to vitreous, Crystal structure: Monoclinic, Cleavage: Perfect basal, Specific Gravity: 2.8-2.9

Hardness: 2

Identified August 3, 2026More mineral →

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Physical properties

Hardness: 2.5-4 on the Mohs scale, Color: Lilac, violet, pink, or gray, Luster: Pearly to vitreous, Crystal structure: Monoclinic, Cleavage: Perfect basal, Specific Gravity: 2.8-2.9

Formation & geological history

Formed in lithium-rich granitic pegmatites and high-temperature quartz veins, often associated with other lithium minerals like spodumene and tourmaline.

Uses & applications

Primary ore of the alkali metal lithium, used in glass manufacturing, ceramics, and occasionally cut as a cabochon for jewelry or collected as mineral specimens.

Geological facts

Lepidolite is one of the few abundant lithium-bearing minerals and is easily recognized by its distinctive lilac-pink color and micaceous, flaky habit.

Field identification & locations

Found worldwide in pegmatite deposits, notably in Brazil, the United States (California), Madagascar, and Zimbabwe. Identified by its soft, micaceous sheets and pinkish-purple hue.