mineral

Lepidolite

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

Hardness: 2.5–3.5 on Mohs scale; Color: Pink, lilac, or purple-gray; Luster: Pearly to vitreous; Crystal Structure: Monoclinic; Cleavage: Perfect basal cleavage producing thin sheets; Specific Gravity: 2.8–2.9.

Hardness: 2
Color: Pink, lilac, or purple-gray
Luster: Pearly to vitreous

Identified April 13, 2026More mineral →

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Physical properties

Formation & geological history

Formed in lithium-bearing granitic pegmatites. It is often associated with other lithium minerals like tourmaline and spodumene. Usually formed during the late stages of magmatic crystallization.

Uses & applications

Primary source of lithium for industrial use (glass/ceramic production), gemstone collecting, and polished into decorative shapes such as wands, spheres, and palm stones for metaphysical uses.

Geological facts

Lepidolite is the most common lithium-bearing mineral on Earth. Its name is derived from the Greek 'lepidos' for 'scale', referring to its scaly appearance. It often contains traces of Rubidium and Cesium.

Field identification & locations

Identify by its distinctive lilac-purple color and 'scaly' or micaceous texture. It is softer than quartz and can often be scratched with a copper penny or a knife. Common locations include Brazil, USA (California/Maine), Canada, and Zimbabwe.