Lepidolite
| Feature | Specification |
| Chemical Formula | KLi₁₋ₓAlₓ(Si₄O₁₀)(F,OH)₂ |
| Color | Lilac, purple, pink, white |
| Hardness | 2.5–3 on the Mohs scale |
| Density | 2.8–3.2 g/cm³ |
| Luster | Pearly to vitreous |
| Crystal System | Monoclinic |
| Cleavage | Perfect cleavage |
| Transparency | Transparent to translucent |
| Occurrence | Found in pegmatite rocks and lithium-rich deposits |
| Uses | Gemstones, mineral specimen collections, lithium source |