Torbernite
| ID | 451 | |
|---|---|---|
| Mineral | Torbernite | |
| Location | Musonoi Mine - Kolwezi - Lualaba - Democratic Republic of the Congo | |
| Fluorescence | LW-UV: close SW-UV: close |
|
| Mindat.org |
View Torbernite information at mindat.org |
|
Mindat data
| ID | 3997 |
|---|---|
| Long ID | 1:1:3997:6 |
| Formula |
Cu(UO2)2(PO4)2 · 12H2O
|
| IMA Status |
0 1 |
| Other Occurrences | Uncommon mineral in the secondary zone of copper bearing uranium deposits. |
| Discovery Year | 1772 |
| Diapheny | Transparent,Translucent |
| Cleavage | Perfect on {001} micaceous, indistinct on {100} |
| Tenacity | brittle |
| Colour | Emerald-green, grass-green. leek green, siskin green, apple green |
| Hardness (min) | 2.0 |
| Hardness (max) | 2.5 |
| Lustre | Vitreous |
| About the name | Named in 1793 by Abraham Gottlob Werner in honor of Torbern Olof Bergmann [March 20, 1735, Katharinberg, Sweden – July 8, 1784, Medevi, Sweden], Professor of Chemistry and Physics, University of Uppsala (Sweden). Bergmann succeeded Johan Gottschalk Wallerius at Uppsala. Bergmann was one of the most important chemists and mineralogists of the eighteenth century. He published on mineralogical classification, Sciagraphia Regni Mineralis, and studied nickel and bismuth. He researched and published on quantitative chemical analysis and the chemical affinity of the elements, the latter which led to more sophisticated theories. Bergmann was honored as a Knight of the Royal Order of Vasa and the Lunar crater Bergmann was named for him. His students included Karl Wilhelm Scheele, Juan José de Elhuyar (co-discoverer of tungsten), and Johan Gadolin. |
| Streak | Pale green |
| Crystal System | Tetragonal |
| Cleavage Type | Perfect |
| Morphology | Crystals thin to thick tabular, square or octagonal, with prominent {001}, {011}, {110}; rarely pyramidal {111}. Commonly forms subparallel aggregates, foliated, micaceous, scaly. |
| Twinning | Rare on {110}. |
| UV | Not fluorescent. (Epitaxial intergrowths with other uranyl mica may fluoresce, however.) |
| Comment Luster | Pearly on cleavages, dull when dehydrated. |
| key_elements |
0 1 |
| shortcode_ima | Tor |
| Group | Autunite Group |
Details
Price: € 10
Dimensions: Not registered
Weight: Not registered
Visibile in overview:
Notes:
| Symbol | Element | |
|---|---|---|
| Cu | Copper | |
| H | Hydrogen | |
| O | Oxygen | |
| P | Phosphorus |
|
| U | Uranium |
|