Hiortdahlite

Image

Crystal of hiortdahlite (yellow) in sanidinite matrix, from San Vito Quarry, Mount Vesuvius, Campania, Italy

© Photo by Joan Rosell, from rosellminerals.com, CC BY-SA 4.0

Properties

Formula Na2Ca4(Ca0.5Zr0.5)Zr(Si2O7)2OF3
Abbreviation Hio
Luminescence emitters Ce, Dy, Er, Eu, Gd, Mn, Sm, Tb
IMA Status Approved/redefined (IMA 1987 s.p.)
Search other databases webmineral.com, mindat.org, rruf.info, fluomin.org, mineralienatlas.de, Handbook of Mineralogy, American Mineralogist Crystal Structure Database
Tags Mineral, Silicate

Composition

Element Atoms
Si 4
Na 2
F 3
O 15
Ca 4.5
Zr 1.5
Total: 30

Reference

Reference Lines Spectra Images
Gorobets and Rogojine 2002 8 0 0