mineral

Lepidolite

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

Hardness: 2.5-3.5 on Mohs scale; Color: Pink, purplish, lavender-gray; Luster: Vitreous to pearly; Crystal structure: Monoclinic; Cleavage: Perfect basal cleavage; Specific gravity: 2.8-2.9

Hardness: 2
Color: Pink, purplish, lavender-gray
Luster: Vitreous to pearly

Identified June 19, 2026More mineral →

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Physical properties

Hardness: 2.5-3.5 on Mohs scale; Color: Pink, purplish, lavender-gray; Luster: Vitreous to pearly; Crystal structure: Monoclinic; Cleavage: Perfect basal cleavage; Specific gravity: 2.8-2.9

Formation & geological history

Formed in granitic pegmatites where lithium is present. It is often found associated with other lithium minerals like tourmaline and spodumene.

Uses & applications

Major source of lithium used in batteries and glass making; commonly used as a gemstone for beads and decorative carvings; popular 'calming' stone in metaphysical circles.

Geological facts

Lepidolite is one of the primary minerals containing rubidium. It was first described in the 18th century and is notable for its 'sparkly' appearance due to its mica-like structure.

Field identification & locations

Identify by its characteristic lavender color and mica-like layered structure that flakes easily. Found in lithium-rich pegmatites in Brazil, Canada, and Africa.

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Mineral/Rock

Banded Gneiss (River Rock/Pebble)

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Metamorphic Rock

Green Apatite on Albite

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mineral