mineral
Lepidolite
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; Luster: Pearly to vitreous; Crystal Structure: Monoclinic; Cleavage: Perfect basal (micaceous); Specific Gravity: 2.8-2.9
- Hardness
- 2
- Color
- Pink, lilac, or purple
- Luster
- Pearly to vitreous
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Physical properties
Hardness: 2.5-3.5 on Mohs scale; Color: Pink, lilac, or purple; Luster: Pearly to vitreous; Crystal Structure: Monoclinic; Cleavage: Perfect basal (micaceous); Specific Gravity: 2.8-2.9
Formation & geological history
Formed in late-stage crystallization of granite pegmatites, often associated with other lithium-bearing minerals like spodumene and tourmaline.
Uses & applications
A major source of lithium used in batteries and glass production; also used as an ornamental stone and for gemstone carving. Popular in the metaphysical community.
Geological facts
Lepidolite was originally named 'lilalite' because of its lavender color, but was later changed to lepidolite which comes from the Greek word 'lepidos' meaning scale, referring to its scaly appearance.
Field identification & locations
Identify in the field by its distinct pink/lilac color and micaceous 'scaly' cleavage. It is commonly found in Brazil, Canada, Madagascar, and the United States (California and Maine).
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metamorphic
Gypsum (variety Selenite or Alabaster)
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Mineral
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Mineral/Rock
Granite
Granite (Phaneritic intrusive igneous rock)
igneous