Apophyllite [ AB4[Si8O22]X·8H2O, A=K,Na,NH4,Cs, B=Ca,Sr, X=F,OH ]
Images of Apophyllite
Material properties
| Formula | AB4[Si8O22]X·8H2O, A=K,Na,NH4,Cs, B=Ca,Sr, X=F,OH |
| Abbreviation | Apo |
| IMA Status | Approved group |
| Crystal symmetry | Tetragonal, Point group 4/mmm, Space group P4/mnc (#128) |
| Members | Hydroxyapophyllite-(K), Fluorapophyllite-(K), Fluorapophyllite-(Na), Hydroxymcglassonite-(K), Fluorapophyllite-(Cs), Fluorapophyllite-(NH4) |
| Luminescence emitters | Ce, Mn, Triplet-singlet, Unspecified, UO2 |
| Spectra | Luminescence (3) |
| Search other databases | webmineral.com, mindat.org, rruf.info, fluomin.org, mineralienatlas.de, Handbook of Mineralogy, American Mineralogist Crystal Structure Database |
| Tags | Group, Hydrated, Silicate |