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Bergenite

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About BergeniteHide

Formula:
Ca2Ba4(UO2)9(PO4)6O6 · 16H2O
Colour:
Yellow
Specific Gravity:
4.82 (Calculated)
Crystal System:
Monoclinic
Name:
Named in 1959 by Hans Wilhelm Bültemann and Gunter Harald Moh for the region near type locality Bergen, Saxony, Germany. The artificial compound was synthesized in 1956 by V. Ross and was called barium-phosphuranylite.
This page provides mineralogical data about Bergenite.


Classification of BergeniteHide

Approved, 'Grandfathered' (first described prior to 1959)
8.EC.40

8 : PHOSPHATES, ARSENATES, VANADATES
E : Uranyl phosphates and arsenates
C : UO2:RO4 = 3:2
42.4.5.3

42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
4 : (AB)5(XO4)2Zq·xH2O
19.11.20

19 : Phosphates
11 : Phosphates of U

Physical Properties of BergeniteHide

Colour:
Yellow
Density:
4.82 g/cm3 (Calculated)

Optical Data of BergeniteHide

Type:
Biaxial (-)
RI values:
nα = 1.660 nβ = 1.700 - 1.710 nγ = 1.722
Max Birefringence:
δ = 0.062
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
High
Dispersion:
weak

Chemical Properties of BergeniteHide

Formula:
Ca2Ba4(UO2)9(PO4)6O6 · 16H2O
IMA Formula:
Ca2Ba4(UO2)9O6(PO4)6 · 16H2O

Crystallography of BergeniteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b
Cell Parameters:
a = 10.092 Å, b = 17.245 Å, c = 17.355 Å
β = 113.678°
Ratio:
a:b:c = 0.585 : 1 : 1.006
Unit Cell V:
2766.2 ų
Z:
2

Type Occurrence of BergeniteHide

Synonyms of BergeniteHide

Other Language Names for BergeniteHide

German:Bergenit
Spanish:Bergenita

Relationship of Bergenite to other SpeciesHide

Other Members of this group:
AlthupiteAlTh(UO2)7(PO4)4(OH)5O2 · 15H2OTric. 1 : P1
DewindtiteH2Pb3(UO2)2(PO4)4O4 · 12H2OOrth. mmm (2/m 2/m 2/m) : Cmma
DumontitePb2(UO2)3(PO4)2(OH)4 · 3H2OMon. 2/m : P21/m
Françoisite-(Ce)(Ce,Nd,Ca)(UO2)3(PO4)2O(OH) · 6H2OMon. 2/m : P21/b
Françoisite-(Nd)(Nd,Ce,Sm)(UO2)3(PO4)2O(OH) · 6H2OMon.
Phosphuranylite(H3O)3KCa(UO2)7(PO4)4O4 · 8H2OOrth. mmm (2/m 2/m 2/m) : Cmcm
PhuralumiteAl2(UO2)3(PO4)3(OH)2 · 13H2OMon.
PhurcaliteCa2(UO2)3(PO4)2O2 · 7H2OOrth.
UpaliteAl(UO2)3(PO4)2O(OH) · 7H2OMon.
VanmeersscheiteU6+(UO2)3(PO4)2(OH)6 · 4H2OOrth.
YingjiangiteK2Ca(UO2)7(PO4)4(OH)6 · 6H2OOrth. mmm (2/m 2/m 2/m) : Cmcm

Common AssociatesHide

Associated Minerals Based on Photo Data:
1 photo of Bergenite associated with BaryteBaSO4

Related Minerals - Nickel-Strunz GroupingHide

8.EC.05Françoisite-(Nd)(Nd,Ce,Sm)(UO2)3(PO4)2O(OH) · 6H2OMon.
8.EC.05PhuralumiteAl2(UO2)3(PO4)3(OH)2 · 13H2OMon.
8.EC.05UpaliteAl(UO2)3(PO4)2O(OH) · 7H2OMon.
8.EC.05Françoisite-(Ce)(Ce,Nd,Ca)(UO2)3(PO4)2O(OH) · 6H2OMon. 2/m : P21/b
8.EC.10ArsenuranyliteCa(UO2)4(AsO4)2(OH)4 · 6H2OOrth.
8.EC.10DewindtiteH2Pb3(UO2)2(PO4)4O4 · 12H2OOrth. mmm (2/m 2/m 2/m) : Cmma
8.EC.10Kivuite(Th,Ca,Pb)(UO2)4(HPO4)2(OH)8 · 7H2O
8.EC.10Phosphuranylite(H3O)3KCa(UO2)7(PO4)4O4 · 8H2OOrth. mmm (2/m 2/m 2/m) : Cmcm
8.EC.10YingjiangiteK2Ca(UO2)7(PO4)4(OH)6 · 6H2OOrth. mmm (2/m 2/m 2/m) : Cmcm
8.EC.15DumontitePb2(UO2)3(PO4)2(OH)4 · 3H2OMon. 2/m : P21/m
8.EC.15HügelitePb2(UO2)3(AsO4)2O2 · 5H2OMon.
8.EC.20MetavanmeersscheiteU6+(UO2)3(PO4)2(OH)6 · 2H2OOrth. mmm (2/m 2/m 2/m) : Fddd
8.EC.20VanmeersscheiteU6+(UO2)3(PO4)2(OH)6 · 4H2OOrth.
8.EC.20ArsenovanmeersscheiteU6+(UO2)3(AsO4)2(OH)6 · 4H2OOrth. mm2 : Pmn21
8.EC.25AlthupiteAlTh(UO2)7(PO4)4(OH)5O2 · 15H2OTric. 1 : P1
8.EC.30MunditeAl(UO2)3(PO4)2(OH)3 · 5.5H2OOrth.
8.EC.35PhurcaliteCa2(UO2)3(PO4)2O2 · 7H2OOrth.

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

42.4.5.1DumontitePb2(UO2)3(PO4)2(OH)4 · 3H2OMon. 2/m : P21/m
42.4.5.2HügelitePb2(UO2)3(AsO4)2O2 · 5H2OMon.

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)Orth. mmm (2/m 2/m 2/m) : Cmca
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.
19.11.10TorberniteCu(UO2)2(PO4)2 · 12H2OTet. 4/mmm (4/m 2/m 2/m) : I4/mmm
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.
19.11.21Metauranocircite-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 · 13H2OMon. 2/m : P21/b
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.

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for BergeniteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
American Mineralogist (1960): 45: 909.
American Mineralogist (1981): 66: 1102.
Bültemann, H. W. & G. H. Moh (1959): Bergenit, ein neues Mineral der Phosphuranylit-Gruppe. Neues Jahrbuch für Mineralogie, Monatshefte, 1959, 232-233.
Piret, P. & Deliens, M. (1981): New data for holotype bergenite. Bulletin de Minéralogie 104, 16-18. (in French)
Locock, A. J. & Burns, P. C. (2003c): The crystal structure of bergenite, a new geometrical isomer of the phosphuranylite group. Canadian Mineralogist: 41: 91-101.
Burns, Peter 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 BergeniteHide

Localities for BergeniteHide

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 ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
France
 
  • Auvergne-Rhône-Alpes
    • Allier
      • Ébreuil
        • Échassières
Kolitsch, U., Gröbner, J. & Brandstätter, F. (2009): Neufunde von Les Montmins, Allier, Frankreich. Lapis 34 (11), 24-32; 54 (in German).
Germany
 
  • Baden-Württemberg
    • Freiburg
      • Waldshut
        • St Blasien
          • Menzenschwand
No reference listed
  • Saxony
    • Erzgebirgskreis
Wittern: "Mineralfundorte in Deutschland", 2001
      • Marienberg
        • Lauta
Hajek, W. (2010): Kristallwelten Marienberg. Weise Verlag, München.
    • Vogtlandkreis
Wittern: "Mineralfundorte in Deutschland", 2001
      • Zobes-Bergen mining district
        • Bergen
"Sigurd Stordal" Collection, aquired from Hochwälder (E-Rocks)
H.W. Bültemann & G.H. Moh (1959) Neues Jahrbuch für Mineralogie, Monatshefte, 232-233
        • Neuensalz
          • Mechelgrün
Tröger, S. (2006): Uran- und Wismutmineralien von Mechelgrün im Vogtland. Lapis 31 (9), 22-24; 58. (in German)
USA
 
  • Utah
    • Emery Co.
Min News 13:7 p2
 
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