Where it forms, where it's found
235recorded occurrences
Varieties
Physical
- Hardness
- 1Talc
- 2Gypsum
- 3Calcite
- 4Fluorite
- 5Apatite
- 6Orthoclase
- 7Quartz
- 8Topaz
- 9Corundum
- 10Diamond
- Transparency
- Translucent
- Colour
- Orange · yellow · orange-red · red-brown · brown-black · black
- Streak
- Yellow, brownish, olive-green
- Tenacity
- brittle
- Cleavage
- None Observed
- Fracture
- Irregular/Uneven · Conchoidal
- Density
- 3.9 g/cm³
Synonyms
- Eliasit
- Eliasita
- Eliasite
- Fester Uranocker
- Gummierz
- Gummiet
- Gummit
- Gummita
- Lichtes Uranpecherz
- Phosphor-Gummit
- Phosphorogummit
- Pittinit
- Pittinita
- Pittinite
- Urangummi
- Urangummit
- Uranisches Gummi-Erz
- Uranisches Pittin-Erz
- Uranogummit
- Uranogummita
- Uranogummite
Literature, links & citation
Citations
- 1847Breithaupt (1847): 903 (as urangummi).
- 1944Palache, Charles, Berman, Harry, Frondel, Clifford (1944) The System of Mineralogy (7th ed.) Vol. 1 - Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, New York.
- 1956Frondel, Clifford (1956) Mineral composition of gummite. American Mineralogist, 41 (7-8) 539-568
- 2015Bonales, L.J.; Menor-Salván, C.; Cobos, J. (2015) Study of the alteration products of a natural uraninite by Raman spectroscopy. Journal of Nuclear Materials, 462. 296-303 doi:10.1016/j.jnucmat.2015.04.017DOI: 10.1016/j.jnucmat.2015.04.017
Cite this entry
@misc{mineral2026,
author = {Mineral Index editorial board},
title = {Gummite — Mineral Index},
year = {2026},
url = {https://mineralindex.org/minerals/gummite-1774},
note = {Accessed 2026-05-11}
}