Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A green radioactive mineral that is a hydrous crystalline phosphate of uranium and copper.
from The Century Dictionary.
- noun A native phosphate of uranium and copper, occurring in square tabular crystals of a bright-green color, pearly luster, and micaceous cleavage. Also called
chalcolite , and copper uranite.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Min.) A mineral occurring in emerald-green tabular crystals having a micaceous structure. It is a hydrous phosphate of uranium and copper. Called also
copper uranite , andchalcolite .
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun mineralogy A
radioactive greenphosphate mineral ,isostructural withautunite , found ingranites and otheruranium -bearingdeposits as a secondary mineral.
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
from Wiktionary, Creative Commons Attribution/Share-Alike License
Support
Help support Wordnik (and make this page ad-free) by adopting the word torbernite.
Examples
-
The mica does not everywhere present this coarsely crystalline appearance, but in flexures and lines of union with the quartz and orthoclase is degraded to a mica schist upon whose surfaces appear uranates of lime and copper (autunite and torbernite), and in which are inclosed garnet crystals of considerable size and beauty.
Scientific American Supplement No. 822, October 3, 1891 Various
-
AUTUNITE, or CALCO-URANITE, a mineral which is one of the "uranium micas," differing from the more commonly occurring torbernite (_q. v._) or cupro-uranite in containing calcium in place of copper.
Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 1 "Austria, Lower" to "Bacon" Various
-
The colour is sulphur-yellow, and this enables the mineral to be distinguished at a glance from the emerald-green torbernite.
Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 1 "Austria, Lower" to "Bacon" Various
-
Though closely resembling the tetragonal torbernite in form, it crystallizes in the orthorhombic system and is optically biaxial.
Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 1 "Austria, Lower" to "Bacon" Various
-
The radium-bearing minerals are torbernite and autunite (hydrous copper-uranium and calcium-uranium phosphates), and are found in dark felsite dikes near their intersections with east-west gold-silver-quartz veins.
-
; and as phosphate in the uranites, torbernite (hydrated phosphate of uranium and copper), and autunite (hydrated phosphate of uranium and lime).
A Text-book of Assaying: For the Use of Those Connected with Mines. Cornelius Beringer 1886
Comments
Log in or sign up to get involved in the conversation. It's quick and easy.