IMA mineral species
Hydroxyapophyllite-(NH₄)
(NH₄)Ca₄(Si₈O₂₀)(OH)(H₂O)₈
Properties
| Chemical formula | (NH₄)Ca₄(Si₈O₂₀)(OH)(H₂O)₈ |
|---|---|
| Elements | N, H, Ca, Si, O |
| Crystal system | Tetragonal |
| Mohs hardness | — |
| Density | — |
| Streak | — |
| Color | — |
| IMA symbol | Hapo-NH₄ |
“—” means no reliable value in Wikidata yet. Check Mindat for full data.
🌍 Where it's found
Type locality (where it was first described): Kaidun meteorite, Yemen
- 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.
✨ Apophyllite family
Learn more
- Hydroxyapophyllite-(NH₄) on Mindat.org
- Wikidata item Q140937327 (source of this page's data – you can correct it there)
IMA mineral species
Tetragonal

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