Mineral

Lepidolite (likely)

K(Li,Al)3(Al,Si)4O10(F,OH)2 (Phyllosilicate mineral, part of the mica group)

AI-generated identification · may be incorrect

Hardness: 2.5-3 on Mohs scale. Color: Often lilac, rose-pink, purple, or gray; can be yellowish or colorless. Luster: Pearly to vitreous. Crystal Structure: Monoclinic, typically found as small, scaly crystals, aggregates, or masses. Cleavage: Perfect basal cleavage, forming thin, flexible flakes.…

Hardness: 2
Color: Often lilac, rose-pink, purple, or gray
Luster: Pearly to vitreous

Identified September 11, 2025More mineral →

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Physical properties

Formation & geological history

Lepidolite is a secondary mineral that forms during the late stages of crystallization in highly evolved granitic pegmatites, often associated with other lithium-bearing minerals like spodumene and tourmaline. It can also be found in high-temperature hydrothermal veins. Its formation is linked to the presence of lithium during the cooling of magma.

Uses & applications

Lepidolite is a significant ore of lithium, which is crucial for batteries (especially for electric vehicles and portable electronics), ceramics, and certain types of glass. As a mineral specimen, its unique color makes it popular among collectors. It is also used in jewelry, often as tumbled stones, beads, or carved pieces, due to its appealing purplish hues.

Geological facts

Lepidolite is known as a "stone of transition" in metaphysical circles, believed to aid in emotional healing and reduce stress. It was first officially described in 1794 and named from the Greek word 'lepidos', meaning 'scale', referring to its characteristic scaly appearance. Its lithium content gives it unique flametest properties, burning with a crimson red flame if enough lithium is present.

Field identification & locations

To identify lepidolite in the field, look for its distinctive lilac to purple color, its scaly or mica-like texture, and its ability to cleave into thin, flexible sheets. It feels relatively soft (can be scratched with a copper coin). Common locations include pegmatite deposits in Brazil, Canada (Manitoba), Japan, Russia, Sweden, Madagascar, and the USA (California, New Mexico, Maine). Tips for collectors: Its softness means it can scratch easily, so store it carefully. Look for specimens with good color saturation and crystal definition.

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