IMA mineral species
Pumpellyite-(Mg)
Ca₂MgAl₂(Si₂O₇)(SiO₄)(OH)₂ * H₂O
Sorosilicate mineral.
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Properties
| Chemical formula | Ca₂MgAl₂(Si₂O₇)(SiO₄)(OH)₂ * H₂O |
|---|---|
| Elements | Ca, Mg, Al, Si, O, H |
| Crystal system | Monoclinic |
| Mohs hardness | — |
| Density | — |
| Streak | — |
| Color | — |
| IMA symbol | Pmp-Mg |
| Nickel–Strunz class | 9.BG.20 |
“—” means no reliable value in Wikidata yet. Check Mindat for full data.
🌍 Where it's found
Type locality (where it was first described): Keweenaw County, United States
- Type locality
- Notable source / deposit
- Country of origin
Marker positions are approximate (region or locality level). Type localities from Wikidata; notable sources curated by Crystopedia.
Varieties & related stones
Learn more
- Pumpellyite-(Mg) on Mindat.org
- Wikidata item Q3925563 (source of this page's data – you can correct it there)
IMA mineral species
Monoclinic