mineral
Lepidolite with Mica / Quartz
K(Li,Al)3(Si,Al)4O10(F,OH)2
Hardness: 2.5–3.5 on Mohs scale. Color: Lilac, pink, purple to grayish-violet. Luster: Pearly to vitreous. Crystal Structure: Monoclinic, micaceous cleavage sheets. Specific Gravity: 2.8–2.9.
- Hardness
- 2
- Color
- Lilac, pink, purple to grayish-violet
- Luster
- Pearly to vitreous
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Physical properties
Hardness: 2.5–3.5 on Mohs scale. Color: Lilac, pink, purple to grayish-violet. Luster: Pearly to vitreous. Crystal Structure: Monoclinic, micaceous cleavage sheets. Specific Gravity: 2.8–2.9.
Formation & geological history
Formed in high-lithium granite pegmatites through late-stage magmatic crystallization and hydrothermal activity.
Uses & applications
Major ore of lithium used in batteries and electronics; also used for decorative carving, cabochons, and gemstone collecting.
Geological facts
Lepidolite is one of the most lithium-rich minerals. Its name is derived from the Greek 'lepidos' meaning scale, referencing its flaky micaceous texture.
Field identification & locations
Identified by its distinctive lilac-purple color and micaceous, flaky, scaly texture. Commonly found in Brazil, Madagascar, Russia, and the USA (California, Maine).
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