IMA mineral species
Phlogopite
KMg₃(Si₃Al)O₁₀(OH)₂
True mica, phyllosilicate mineral.
Properties
⛏ Mohs hardness2 – 3
💅🪙🍶🔪💎
A copper coin scratches it.
⚖ Density2.78 – 2.85 g/cm³
Average
🔷 Monoclinic✏️ streak white
| Chemical formula | KMg₃(Si₃Al)O₁₀(OH)₂ |
|---|---|
| Elements | K, Mg, Si, Al, O, H |
| Crystal system | Monoclinic |
| Mohs hardness | 2 – 3 |
| Density | 2.78 – 2.85 g/cm³ |
| Streak | white |
| Color | — |
| IMA symbol | Phl |
| Nickel–Strunz class | 9.EC.20 |
“—” means no reliable value in Wikidata yet. Check Mindat for full data.
Learn more
- Phlogopite on Mindat.org
- Wikipedia article
- Wikidata item Q422977 (source of this page's data – you can correct it there)
IMA mineral species
2–3
Monoclinic
RedYellowGreenBrownGrayWhite & Clear