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Torbernite

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Torbern Olof Bergman
Formula:
Cu(UO2)2(PO4)2 · 12H2O
Colour:
Emerald-green, grass-green. leek green, siskin green, apple green
Lustre:
Sub-Adamantine, Vitreous, Waxy, Pearly
Hardness:
2 - 2½
Specific Gravity:
3.22
Crystal System:
Tetragonal
Member of:
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.
Autunite Group.

A secondary mineral found in the oxidized zones of some uraniferous copper deposits.
Often dehydrated to metatorbernite (note that also transparent crystals can already be metatorbernite).


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Classification of TorberniteHide

Approved, 'Grandfathered' (first described prior to 1959)
8.EB.05

8 : PHOSPHATES, ARSENATES, VANADATES
E : Uranyl phosphates and arsenates
B : UO2:RO4 = 1:1
40.2a.13.1

40 : HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
2a : AB2(XO4)2·xH2O, containing (UO2)2+
19.11.10

19 : Phosphates
11 : Phosphates of U

Pronounciation of TorberniteHide

Pronounciation:
PlayRecorded byCountry
Jolyon & Katya RalphUnited Kingdom

Physical Properties of TorberniteHide

Sub-Adamantine, Vitreous, Waxy, Pearly
Transparency:
Transparent, Translucent
Comment:
Pearly on cleavages, dull when dehydrated.
Colour:
Emerald-green, grass-green. leek green, siskin green, apple green
Streak:
Pale green
Hardness:
2 - 2½ on Mohs scale
Tenacity:
Brittle
Cleavage:
Perfect
Perfect on {001} micaceous, indistinct on {100}
Density:
3.22 g/cm3 (Measured)    

Optical Data of TorberniteHide

Type:
Uniaxial (-)
RI values:
nω = 1.590 - 1.592 nε = 1.581 - 1.582
Birefringence:
0.010
Max Birefringence:
δ = 0.009 - 0.010
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Optical Extinction:
Parallel
Pleochroism:
Visible
Comments:
O = Dark green to sky blue
E = Green

Chemical Properties of TorberniteHide

Formula:
Cu(UO2)2(PO4)2 · 12H2O
Common Impurities:
Ca,Ba,Mg

Age informationHide

Age range:
Cenozoic : 8.40 Ma to 0.20 Ma - based on data given below.
Sample ages:
Sample IDRecorded ageGeologic TimeDating method
10.20 MaPleistoceneU/Pb
24.55 MaPlioceneU/Pb
38.40 MaMioceneU/Pb

Crystallography of TorberniteHide

Crystal System:
Tetragonal
Class (H-M):
4/mmm (4/m 2/m 2/m) - Ditetragonal Dipyramidal
Space Group:
I4/mmm
Cell Parameters:
a = 7.0267(4) Å, c = 20.807(2) Å
Ratio:
a:c = 1 : 2.961
Unit Cell V:
1027.3 ų
Z:
2
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}.
Comment:
Data for synthetic crystal. Other cell data reported: 7.025, 20.63 A.

Crystallographic forms of TorberniteHide

Crystal Atlas:
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Torbernite no.25 - Goldschmidt (1913-1926)
Torbernite no.36 - Goldschmidt (1913-1926)
Torbernite no.38 - Goldschmidt (1913-1926)
3d models and HTML5 code kindly provided by www.smorf.nl.

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Epitaxial Relationships of TorberniteHide

Epitaxial Minerals:
ZeuneriteCu(UO2)2(AsO4)2 · 12H2O
UranospiniteCa(UO2)(AsO4)2 · 10H2O
BassetiteFe2+(UO2)2(PO4)2 · 10H2O
AutuniteCa(UO2)2(PO4)2 · 11H2O
Epitaxy Comments:
Parallel growths with autunite are common. Parallel growths with uranospinite, zeunerite and bassetite are documented.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
10.30 (100)
6.61 (40)
4.94 (90)
4.476 (40)
3.674 (40)
3.578 (90)
3.512 (80)
Comments:
Synthetic material

Type Occurrence of TorberniteHide

Synonyms of TorberniteHide

Other Language Names for TorberniteHide

Relationship of Torbernite to other SpeciesHide

Member of:
Other Members of this group:
AutuniteCa(UO2)2(PO4)2 · 11H2OOrth. mmm (2/m 2/m 2/m) : Pnma
BassetiteFe2+(UO2)2(PO4)2 · 10H2OMon. 2/m
HeinrichiteBa(UO2)2(AsO4)2 · 10H2OMon. 2/m
KahleriteFe(UO2)2(AsO4)2 · 12H2OTet. 4/m : P42/n
MetarauchiteNi(UO2)2(AsO4)2 · 8H2OTric. 1 : P1
Nováčekite-IMg(UO2)2(AsO4)2 · 12H2OTric. 1 : P1
Nováčekite-IIMg(UO2)2(AsO4)2 · 10H2OMon. 2/m
RauchiteNi(UO2)2(AsO4)2 · 10H2OTric. 1 : P1
SabugaliteHAl(UO2)4(PO4)4 · 16H2OMon. 2/m : B2/m
SaléeiteMg(UO2)2(PO4)2 · 10H2OMon. 2/m : P21/b
UranocirciteBa(UO2)2(PO4)2 · 10H2OTet.
UranospiniteCa(UO2)(AsO4)2 · 10H2OTet. 4/mmm (4/m 2/m 2/m) : P4/nmm
ZeuneriteCu(UO2)2(AsO4)2 · 12H2OTet. 4/mmm (4/m 2/m 2/m) : I4/mmm
Forms a series with:

Common AssociatesHide

AutuniteCa(UO2)2(PO4)2 · 11H2O
Limonite(Fe,O,OH,H2O)
MetatorberniteCu(UO2)2(PO4)2 · 8H2O
UraniniteUO2
ZeuneriteCu(UO2)2(AsO4)2 · 12H2O
Associated Minerals Based on Photo Data:
Kasolite66 photos of Torbernite associated with Kasolite on mindat.org.
Autunite58 photos of Torbernite associated with Autunite on mindat.org.
Quartz43 photos of Torbernite associated with Quartz on mindat.org.
Smoky Quartz33 photos of Torbernite associated with Smoky Quartz on mindat.org.
Parsonsite28 photos of Torbernite associated with Parsonsite on mindat.org.
Cuprosklodowskite27 photos of Torbernite associated with Cuprosklodowskite on mindat.org.
Malachite25 photos of Torbernite associated with Malachite on mindat.org.
Metatorbernite22 photos of Torbernite associated with Metatorbernite on mindat.org.
19 photos of Torbernite associated with on mindat.org.
Wulfenite17 photos of Torbernite associated with Wulfenite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

8.EB.05AutuniteCa(UO2)2(PO4)2 · 11H2OOrth. mmm (2/m 2/m 2/m) : Pnma
8.EB.05HeinrichiteBa(UO2)2(AsO4)2 · 10H2OMon. 2/m
8.EB.05KahleriteFe(UO2)2(AsO4)2 · 12H2OTet. 4/m : P42/n
8.EB.05Nováčekite-IMg(UO2)2(AsO4)2 · 12H2OTric. 1 : P1
8.EB.05SaléeiteMg(UO2)2(PO4)2 · 10H2OMon. 2/m : P21/b
8.EB.05UranocirciteBa(UO2)2(PO4)2 · 10H2OTet.
8.EB.05UranospiniteCa(UO2)(AsO4)2 · 10H2OTet. 4/mmm (4/m 2/m 2/m) : P4/nmm
8.EB.05Xiangjiangite(Fe3+,Al)(UO2)4(PO4)2(SO4)2(OH) · 22H2OTet.
8.EB.05ZeuneriteCu(UO2)2(AsO4)2 · 12H2OTet. 4/mmm (4/m 2/m 2/m) : I4/mmm
8.EB.05MetarauchiteNi(UO2)2(AsO4)2 · 8H2OTric. 1 : P1
8.EB.05RauchiteNi(UO2)2(AsO4)2 · 10H2OTric. 1 : P1
8.EB.10BassetiteFe2+(UO2)2(PO4)2 · 10H2OMon. 2/m
8.EB.10LehneriteMn2+(UO2)2(PO4)2 · 8H2OMon.
8.EB.10Meta-autuniteCa(UO2)2(PO4)2 · 6-8H2OTet. 4/mmm (4/m 2/m 2/m)
8.EB.10MetasaléeiteMg(UO2)2(PO4)2 · 8H2O
8.EB.10Metauranocircite-IBa(UO2)2(PO4)2 · 7H2OMon. 2 : P21
8.EB.10MetauranospiniteCa(UO2)2(AsO4)2 · 8H2OTet. 4/m : P42/n
8.EB.10MetaheinrichiteBa(UO2)2(AsO4)2 · 8H2OTet. 4mm
8.EB.10MetakahleriteFe2+(UO2)2(AsO4)2 · 8H2OTric. 1 : P1
8.EB.10MetakirchheimeriteCo(UO2)2(AsO4)2 · 8H2OTric. 1 : P1
8.EB.10MetanováčekiteMg(UO2)2(AsO4)2 · 8H2OTet. 4/m : P4/n
8.EB.10MetatorberniteCu(UO2)2(PO4)2 · 8H2OTet. 4/m : P4/n
8.EB.10MetazeuneriteCu(UO2)2(AsO4)2 · 8H2OTet. 4/m : P42/n
8.EB.10PrzhevalskitePb2(UO2)3(PO4)2(OH)4 · 3H2OOrth.
8.EB.10Meta-lodèviteZn(UO2)2(AsO4)2 · 10H2O
8.EB.15AbernathyiteK(UO2)(AsO4) · 3H2OTet. 4/mmm (4/m 2/m 2/m) : P4/ncc
8.EB.15Chernikovite(H3O)2(UO2)2(PO4)2 · 6H2OTet.
8.EB.15Meta-ankoleiteK2(UO2)2(PO4)2 · 6H2OTet. 4/mmm (4/m 2/m 2/m) : P4/nmm
8.EB.15Natrouranospinite(Na2,Ca)(UO2)2(AsO4)2 · 5H2OTet. 4/mmm (4/m 2/m 2/m) : P4/nmm
8.EB.15Trögerite(H3O)(UO2)(AsO4) · 3H2OTet. 4/mmm (4/m 2/m 2/m) : P4/nmm
8.EB.15Uramphite(NH4)2(UO2)2(PO4)2 · 6H2OTet.
8.EB.15Uramarsite(NH4,H3O)2(UO2)2(AsO4,PO4)2 · 6H2OTet. 4/mmm (4/m 2/m 2/m) : P4/mmm
8.EB.20ThreadgolditeAl(UO2)2(PO4)2(OH) · 8H2OMon.
8.EB.20ChistyakovaiteAl(UO2)2(AsO4)2(F,OH) · 6.5H2OMon.
8.EB.25ArsenuranospathiteAl[(UO2)(AsO4)]2F(H2O)20Orth. mm2 : Pnn2
8.EB.25Uranospathite(Al,☐)(UO2)2(PO4)2F · 20(H2O,F)Orth. mm2 : Pnn2
8.EB.30Vochtenite(Fe2+,Mg)Fe3+(UO2)4(PO4)4(OH) · 12-13H2OMon.
8.EB.35CoconinoiteFe3+2Al2(UO2)2(PO4)4(SO4)(OH)2 · 20H2OMon.
8.EB.40RanunculiteHAl(UO2)(PO4)(OH)3 · 4H2OMon.
8.EB.45TrianguliteAl3(UO2)4(PO4)4(OH)5 · 5H2OTric.
8.EB.50FurongiteAl13(UO2)7(PO4)13(OH)14 · 58H2OTric. 1 : P1
8.EB.55SabugaliteHAl(UO2)4(PO4)4 · 16H2OMon. 2/m : B2/m

Related Minerals - Dana Grouping (8th Ed.)Hide

40.2a.13.2MetatorberniteCu(UO2)2(PO4)2 · 8H2OTet. 4/m : P4/n

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

19.11.1LermontoviteU(PO4)(OH) · H2OOrth. mmm (2/m 2/m 2/m) : Ccca
19.11.2MetavanmeersscheiteU6+(UO2)3(PO4)2(OH)6 · 2H2OOrth. mmm (2/m 2/m 2/m) : Fddd
19.11.3VanmeersscheiteU6+(UO2)3(PO4)2(OH)6 · 4H2OOrth.
19.11.4Chernikovite(H3O)2(UO2)2(PO4)2 · 6H2OTet.
19.11.5VyacheslaviteU(PO4)(OH) · nH2OOrth.
19.11.6MetanatroautuniteNa(UO2)(PO4)(H2O)3Tet. 4/mmm (4/m 2/m 2/m) : P4/ncc
19.11.7YingjiangiteK2Ca(UO2)7(PO4)4(OH)6 · 6H2OOrth. mmm (2/m 2/m 2/m) : Cmcm
19.11.8Meta-ankoleiteK2(UO2)2(PO4)2 · 6H2OTet. 4/mmm (4/m 2/m 2/m) : P4/nmm
19.11.9Uramphite(NH4)2(UO2)2(PO4)2 · 6H2OTet.
19.11.11MetatorberniteCu(UO2)2(PO4)2 · 8H2OTet. 4/m : P4/n
19.11.12SaléeiteMg(UO2)2(PO4)2 · 10H2OMon. 2/m : P21/b
19.11.13NingyoiteCaU(PO4)2 · 1-2H2OOrth.
19.11.14Meta-autuniteCa(UO2)2(PO4)2 · 6-8H2OTet. 4/mmm (4/m 2/m 2/m)
19.11.15AutuniteCa(UO2)2(PO4)2 · 11H2OOrth. mmm (2/m 2/m 2/m) : Pnma
19.11.16Pseudo-autunite(H3O)4Ca2(UO2)2(PO4)4 · 5H2OOrth.
19.11.17PhurcaliteCa2(UO2)3(PO4)2O2 · 7H2OOrth.
19.11.18Phosphuranylite(H3O)3KCa(UO2)7(PO4)4O4 · 8H2OOrth. mmm (2/m 2/m 2/m) : Cmcm
19.11.19UlrichiteCaCu(UO2)(PO4)2 · 4H2OMon.
19.11.20BergeniteCa2Ba4(UO2)9(PO4)6O6 · 16H2OMon. 2/m : P21/b
19.11.21Metauranocircite-IBa(UO2)2(PO4)2 · 7H2OMon. 2 : P21
19.11.22UranocirciteBa(UO2)2(PO4)2 · 10H2OTet.
19.11.23RanunculiteHAl(UO2)(PO4)(OH)3 · 4H2OMon.
19.11.24TrianguliteAl3(UO2)4(PO4)4(OH)5 · 5H2OTric.
19.11.25MunditeAl(UO2)3(PO4)2(OH)3 · 5.5H2OOrth.
19.11.26UpaliteAl(UO2)3(PO4)2O(OH) · 7H2OMon.
19.11.27FurongiteAl13(UO2)7(PO4)13(OH)14 · 58H2OTric. 1 : P1
19.11.28ThreadgolditeAl(UO2)2(PO4)2(OH) · 8H2OMon.
19.11.29PhuralumiteAl2(UO2)3(PO4)3(OH)2 · 13H2OMon.
19.11.30MoreauiteAl3(UO2)(PO4)3(OH)2 · 13H2O
19.11.31SabugaliteHAl(UO2)4(PO4)4 · 16H2OMon. 2/m : B2/m
19.11.32Uranospathite(Al,☐)(UO2)2(PO4)2F · 20(H2O,F)Orth. mm2 : Pnn2
19.11.33AlthupiteAlTh(UO2)7(PO4)4(OH)5O2 · 15H2OTric. 1 : P1
19.11.34Françoisite-(Nd)(Nd,Ce,Sm)(UO2)3(PO4)2O(OH) · 6H2OMon.
19.11.35Kivuite(Th,Ca,Pb)(UO2)4(HPO4)2(OH)8 · 7H2O
19.11.36ParsonsitePb2(UO2)(PO4)2Tric. 1 : P1
19.11.37DewindtiteH2Pb3(UO2)2(PO4)4O4 · 12H2OOrth. mmm (2/m 2/m 2/m) : Cmma
19.11.38DumontitePb2(UO2)3(PO4)2(OH)4 · 3H2OMon. 2/m : P21/m
19.11.39PrzhevalskitePb2(UO2)3(PO4)2(OH)4 · 3H2OOrth.
19.11.40LehneriteMn2+(UO2)2(PO4)2 · 8H2OMon.
19.11.41BassetiteFe2+(UO2)2(PO4)2 · 10H2OMon. 2/m
19.11.42Vochtenite(Fe2+,Mg)Fe3+(UO2)4(PO4)4(OH) · 12-13H2OMon.

Fluorescence of TorberniteHide

Not fluorescent. (Epitaxial intergrowths with other uranyl mica may fluoresce, however.)

Other InformationHide

Notes:
Radioactive. H2O content varies with relative humidity. Soluble in acids.
Health Risks:
Contains uranium - always wash hands after handling. Avoid inhaling dust when handling or breaking. Never lick or ingest. Avoid prolonged exposure in the proximity of the body. Store away from inhabited areas.

References for TorberniteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Born, Ignatz Edler von (1772) Index Fossilium, quae collegit, et in Classes ac Ordines disposuit Ignatius Eques a Born (Lithophylacium Bornianum).- Prag, Wolfgang Gerle, p. 42 (as viridis cryst.).
Werner, A.G. (1780) Axel von Cronstedts Versuch einer Mineralogie. Aufs neue aus dem Schwedischen übersetzt und nächst verschiedenen Anmerkungen vorzüglich mit äussern Beschreibungen der Fossilien vermehrt.- Leipzig, bei Siegfried Leberecht Crusius, p. 217-218 (as Grüner Glimmer).
Klaproth (1789) Schrift. Ges. Nat. Berlin: 9: 273 (as Urankalk durch Kupfer gefärbt).
Werner (1789) Bergmaennisches Journal, Freiberg (Neues Bergmännisches Journal): 376 (as Chalkolith).
Karsten, D.L.G. (1793) Über Herrn Werners Verbesserungen in der Mineralogie auf veranlassung der freimüthigen Gedanken, etc., des Herrn Abbé Estner. 80pp., Berlin: 43 (as Torberit).
Klaproth, M.H. (1797) Beiträge zur chemischen Kenntniss der Mineralkörper. vol. 2: 217 (as Uranites spathosus).
Werner (1800) (as Uranglimmer).
Haüy, R.J. (1801) Traité de minéralogie. First edition: in 4 volumes with atlas in fol.: 4: 319 (as Urane oxydé).
Ludwig, C.F. (1803) Handbuch der Mineralogie nach A.G. Werner. 2 volumes, Leipzig: 1: 55 (as Uranglimmer), 308 (as Torbernit).
Aikin, A. (1814) Manual of Mineralogy, 8 volumes, London, first edition (as Uranite).
Breithaupt, A. (1820) Kurze Charakteristik des Mineral-System’s. 8vo, Freiberg (as Uranphyllit).
Jameson, R. (1820) A System of Mineralogy, third edition, 3 volumes (as Uran-Mica).
Berzelius (1823) Jahresber. (as Phosphate of Uranium and Copper).
Phillips, R. (1823) Annals of Philosophy, London: 5: 57 (as Phosphate of Uranium containing Phosphate of Copper).
Brooke, H.J. and Miller, W.H. (1852) Introduction to Mineralogy by Wm. Phillips, London, 1823. New edition by Brooke and Miller. 8vo, London: 517 (as Torberite).
Breithaupt (1865) Berg.- und hüttenmännisches Zeitung, Freiberg, Leipzig (merged into Glückauf): 24: 302 (as Cuprouranit).
Schrauf (1872) Mineralogische und petrographische Mitteilungen, Vienna: 181.
Winkler (1873) Journal für praktische Chemie, Leipzig: 7: 10.
Dana, E.S. (1892) System of Mineralogy, 6th. Edition, New York: 856.
Walker (1898) American Journal of Science: 6: 41.
Rinne (1901) Centralblatt für Mineralogie, Geologie und Paleontologie, Stuttgart: 618.
Buchholz (1903) Centralblatt für Mineralogie, Geologie und Paleontologie, Stuttgart: 362.
Millosevich (1912) Reale accademia nazionale dei Lincei, Rome, Rend.: 21: 594.
Hallimond (1916) Mineralogical Magazine: 17: 326.
Forjaz (1917) Comptes rendu de l’Académie des sciences de Paris: 164: 102.
Heinrich (1917) Journal für praktische Chemie, Leipzig: 96: 73.
Goldschmidt, V. (1918) Atlas der Krystallformen. 9 volumes, atlas, and text: vol. 5: 101.
Hallimond (1920) Mineralogical Magazine: 19: 43.
Larsen, E.S. (1921) The Microscopic Determination of the Nonopaque Minerals, First edition, USGS Bulletin 679: 195.
Steinkuhler (1923) Bull. soc. chim. Belgique: 253, 270.
Hintze, Carl (1931) Handbuch der Mineralogie. Berlin and Leipzig. 6 volumes: 1 [4B]: 993.
Goldsztaub (1932) Bulletin de la Société française de Minéralogie: 55: 7.
Meixner (1940) Chemie der Erde, Jena: 12: 433.
Palache, C., Berman, H., & Frondel, C. (1951) The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged, 1124 pp.: 981-984.
US Geological Survey Bulletin (1956) 1036-G, 138.
American Mineralogist (1957) 42: 905-908.
Frondel, C. (1958) Systematic mineralogy of uranium and thorium. US Geological Survey Bulletin (1958): 1064: 170-177.
American Mineralogist (1964) 49: 1578-1602.
American Mineralogist (1965) 50: 1-12.
Anthony, J.W., Bideaux, R.A., Bladh, K.W., and Nichols, M.C. (2000) Handbook of Mineralogy, Volume IV. Arsenates, Phosphates, Vanadates. Mineral Data Publishing, Tucson, AZ, 680pp.: 594.
Locock, A. J. & Burns, P. C. (2003d): Crystal structures and synthesis of the copper-dominant members of the autunite and meta-autunite groups: torbernite, zeunerite, metatorbernite and metazeunerite. Canadian Mineralogist: 41: 489-502.
Burns, P.C. (2005) U 6+ minerals and inorganic compounds: insights into an expanded structural hierarchy of crystal structures. Canadian Mineralogist: 43: 1839-1894.

Internet Links for TorberniteHide

Localities for TorberniteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListShow

Mineral and/or Locality  
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