mineral
Lepidolite
Lepidolite (K(Li,Al)3(Si,Al)4O10(F,OH)2)
AI-generated identification · may be incorrectHardness: 2.5-3.5 on Mohs scale; Color: Pink, lilac, rose, or purplish-gray; Luster: Pearly to vitreous; Crystal system: Monoclinic; Cleavage: Perfect basal (peels in flexible flakes/sheets); Specific gravity: 2.8-2.9.
- Hardness
- 2
- Color
- Pink, lilac, rose, or purplish-gray
- Luster
- Pearly to vitreous
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Physical properties
Hardness: 2.5-3.5 on Mohs scale; Color: Pink, lilac, rose, or purplish-gray; Luster: Pearly to vitreous; Crystal system: Monoclinic; Cleavage: Perfect basal (peels in flexible flakes/sheets); Specific gravity: 2.8-2.9.
Formation & geological history
Formed in granitic pegmatites, hydrothermal veins, and occasionally in high-grade metamorphic rocks as a product of lithium-rich magmatic fluids cooling at late stages.
Uses & applications
Major ore of lithium used in batteries and electronics, glass manufacturing, decorative carvings, and as a popular mineral specimen for collectors.
Geological facts
Lepidolite is the most common lithium-bearing mineral. Its name comes from the Greek word 'lepidos' meaning scale, referencing its scaly cleavage flakes.
Field identification & locations
Identified by its distinctive lilac-to-pink color, soft flaky scaly appearance, and pearly luster. Commonly found in Brazil, Madagascar, USA (California, Maine), and Zimbabwe.
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