Topaz

Image

Topaz specimen from Minas Gerais, Brazil

© Photo by Chip Clark, via Smithsonian National Museum of Natural History

Properties

Formula Al2SiO4F2
Abbreviation Tpz
Classification Minerals containing SiO4
Luminescence emitters Cr, Fe, Mn, Ti, Unspecified
Spectra Reflectance (1)
IMA Status Grandfathered (pre-IMA), antiquity
Search other databases webmineral.com, mindat.org, rruf.info, fluomin.org, mineralienatlas.de, Handbook of Mineralogy, American Mineralogist Crystal Structure Database
Tags Mineral, Aluminosilicate

Composition

Element Atoms
Si 1
Al 2
F 2
O 4
Total: 9

References

Reference
Lines Spectra Images
Agangi et al. 2018 1 0 0
Gaft et al. 1998 4 0 0
Kuznetsov and Tarashchan 1988 4 0 0
CSIRO Reflectance 2025b 0 1 0
Tarashchan 1978 4 0 0