IMA mineral species

Hydroxyapophyllite-(K)

KCa₄(Si₈O₂₀)(OH,F) * 8H₂O

Phyllosilicate mineral.

Hydroxyapophyllite-(K) specimen
Apophyllite-(KOH)-Pyrite-Tobermorite-44416.jpg · Wikimedia Commons (see file page for author & license)

Properties

Chemical formulaKCa₄(Si₈O₂₀)(OH,F) * 8H₂O
ElementsK, Ca, Si, O, H, F
Crystal system—
Mohs hardness—
Density—
Streak—
Color—
IMA symbolHapo-K
Nickel–Strunz class9.EA.15

“—” means no reliable value in Wikidata yet. Check Mindat for full data.

✨ Apophyllite family