is a hydrated uranyl silicate mineral that is very strongly
to its uranium (U) content of over 71%. It is also fluorescent
showing weak orange yellow under both shortwave and
longwave UV. Its type locality is the Shinkolobwe Mine (Kasolo Mine), Katanga (Shaba), Democratic Republic of Congo (Zaïre).
This mine is the type locality for quite a few uranium
minerals. At this and other localities Soddyite is
often closely associated with other radioactive minerals
such as Cuprosklodowskite,
Kasolite, Sklodowskite, Swamboite, Torbernite and Uranophane.
above shows yellow Soddyite associated with green Cuprosklodowskite.
Soddyite mineral specimens are very attractive with
its bright yellow crystals set with other brightly colored
minerals such as green Cuprosklodowskite. Faceted gems
are extremely rare and unusual.
is named after Frederick Soddy (1877
- 1956), British physicist and radiochemist.
with all radioactive minerals always wash hands after handling. Avoid inhaling dust when
handling or breaking. Never lick or ingest. Avoid prolonged exposure in
proximity of the body. Store away from inhabited areas.
for Soddyite: From Kasolo, Swambo, and in the Musonoi
mine, Kolwezi, Katanga Province, Congo (Shaba Province,
Zaire). At the Norrabees pegmatite, Namaqualand, Cape
Province, South Africa. In the Krunkelbachtal mine,
near Menzenschwand, Black Forest, Germany. In the USA,
in the Ruggles pegmatite, Grafton, Grafton County, New
Hampshire; at the Steel City mine, Yavapai County, Arizona;
from the Jackpile mine, Laguna, Valencia County, New
Mexico; in the Lucky Mc mine, Fremont County, Wyoming;
from the Honeycomb Hills, Juab County, Utah; and at
the Lookout No. 22 claim, Marshall Pass, Saguache County,
Colorado. On Mt. Painter, Flinders Ranges, South Australia,
and from South Alligator Valley, Northern Territory,