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Iriginite

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About IriginiteHide

Formula:
(UO2)Mo2O7 · 3H2O
Colour:
Canary yellow
Lustre:
Vitreous, Dull
Hardness:
1 - 2
Crystal System:
Orthorhombic
Name:
The author liked the sound of the name.
This page provides mineralogical data about Iriginite.


Classification of IriginiteHide

Approved, 'Grandfathered' (first described prior to 1959)
4.GB.60

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
G : Uranyl Hydroxides
B : With additional cations (K, Ca, Ba, Pb, etc.); with mainly UO2(O,OH)5 pentagonal polyhedra
49.2.3.1

49 : HYDRATED MOLYBDATES AND TUNGSTATES
2 : Hydrated Normal Molybdates and Tungstates
27.3.7

27 : Sulphites, Chromates, Molybdates and Tungstates
3 : Molybdates

Physical Properties of IriginiteHide

Vitreous, Dull
Colour:
Canary yellow
Streak:
Light yellow
Hardness:
1 - 2 on Mohs scale

Optical Data of IriginiteHide

Type:
Biaxial (-)
RI values:
nα = 1.730 - 1.764 nβ = 1.820 - 1.889 nγ = 1.930 - 1.936
2V:
Measured: 60° , Calculated: 58° to 90°
Max Birefringence:
δ = 0.200
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High
Dispersion:
r > v

Chemical Properties of IriginiteHide

Formula:
(UO2)Mo2O7 · 3H2O
IMA Formula:
(UO2)Mo6+2O7 · 3H2O

Crystallography of IriginiteHide

Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:
Pbcm
Cell Parameters:
a = 12.77 Å, b = 6.71 Å, c = 11.53 Å
Ratio:
a:b:c = 1.903 : 1 : 1.718
Unit Cell V:
987.97 ų (Calculated from Unit Cell)

Type Occurrence of IriginiteHide

Other Language Names for IriginiteHide

German:Iriginit
Spanish:Iriginita

Common AssociatesHide

Associated Minerals Based on Photo Data:
Umohoite7 photos of Iriginite associated with Umohoite on mindat.org.
Mourite6 photos of Iriginite associated with Mourite on mindat.org.
Ilsemannite3 photos of Iriginite associated with Ilsemannite on mindat.org.
Calcurmolite2 photos of Iriginite associated with Calcurmolite on mindat.org.
Powellite1 photo of Iriginite associated with Powellite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

4.GB.05AgrinieriteK2(Ca,Sr)[(UO2)3O3(OH)2]2 · 5H2OOrth.
4.GB.05CompreignaciteK2(UO2)6O4(OH)6 · 7H2OOrth.
4.GB.05RameauiteK2Ca(H[3]2O)(H[5]2O)4[(UO2)6O6(OH)4](H[4]2O)Mon. m : Bb
4.GB.10BecquereliteCa(UO2)6O4(OH)6 · 8H2OOrth. mm2 : Pna21
4.GB.10BillietiteBa(UO2)6O4(OH)6 · 4-8H2OOrth. mm2
4.GB.10ProtasiteBa(UO2)3O3(OH)2 · 3H2OMon.
4.GB.15Richetite(Fe3+,Mg)Pb 8.6(UO2)36O36(OH)24•41H2O Tric.
4.GB.20BauranoiteBa(UO2)2(OH)6 · 1-2H2O
4.GB.20Calciouranoite(Ca,Ba,Pb)U2O7 · 5H2O
4.GB.20Metacalciouranoite(Ca,Ba,Pb,K2)U2O7 · 2H2O
4.GB.25FourmarieritePb(UO2)4O3(OH)4 · 4H2OOrth.
4.GB.30WölsendorfitePb7(UO2)14O19(OH)4 · 12H2OOrth. mmm (2/m 2/m 2/m) : Cmcm
4.GB.35MasuyitePb(UO2)3O3(OH)2 · 3H2OOrth.
4.GB.40MetavandendriesscheitePbU7O22 · nH2O n < 12Orth.
4.GB.40VandendriesscheitePbU7O22 · 12H2O
4.GB.45VandenbrandeiteCu(UO2)(OH)4Tric. 1 : P1
4.GB.50SayritePb2(UO2)5O6(OH)2 · 4H2OMon.
4.GB.55CuritePb3(UO2)8O8(OH)6 · 3H2OOrth. mmm (2/m 2/m 2/m) : Pnma
4.GB.65UranosphaeriteBi(UO2)O2(OH)Mon. 2/m
4.GB.70HolfertiteCaxU6+2-xTi(O8-xOH4x) · 3H2OTrig. 3 : P3

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

27.3.1LindgreniteCu3(MoO4)2(OH)2Mon. 2/m : P21/m
27.3.2PowelliteCa(MoO4)Tet. 4/m : I41/a
27.3.3WulfenitePb(MoO4)Tet. 4/m : I41/a
27.3.4KoechliniteBi2MoO6Orth. mm2 : Pna21
27.3.5SedoviteU(MoO4)2Orth.
27.3.6MouriteUMo5O12(OH)10Mon.
27.3.8Umohoite(UO2)MoO4 · 2H2OTric.
27.3.9MoluraniteH4U4+(UO2)3(MoO4)7 · 18H2O
27.3.10CousiniteMgU2Mo2O11 · 6H2O
27.3.11Calcurmolite(Ca,Na)2(UO2)3Mo2(O,OH)11 · nH2O
27.3.12TengchongiteCaO · 6UO3 · 2MoO3 · 12H2OOrth.
27.3.13KamiokiteFe2Mo3O8Hex.
27.3.14FerrimolybditeFe2(MoO4)3 · nH2OOrth. mmm (2/m 2/m 2/m) : Pmmn

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 IriginiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Soboleva, M.V., Pudovkina, I.A. (1957) Iriginite. in Mineraly Urana, Spravochnik (Uranium Minerals Handbook), (Moscow): 249-251.
Fleischer, M. (1958) New mineral names. American Mineralogist: 43: 378-387.
Epshtein, G.Y. (1959) On the molybdates of uranium — moluranite and iriginite. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva: 88(5): 564-570.
Fleischer, M. (1960) New mineral names. American Mineralogist: 45: 252-258.
Jambor, J.L., Roberts, A.C., Puziewicz, J. (1994) New mineral names. American Mineralogist: 79: 570-574.
Krivovichev, S.V., Burns, P.C. (2000) Crystal chemistry of uranyl molybdates. II. The crystal structure of iriginite. Canadian Mineralogist: 38: 847-851.
Jambor, J.L., Roberts, A.C. (2001) New mineral names. American Mineralogist: 86: 767-770.
Materialy VSEGEI: 45: 117-124.
Doklady Akademii Nauk SSSR: 210: 873-876.
Burns, P.C. (2005) U6+ minerals and inorganic compounds: insights into an expanded structural hierarchy of crystal structures. Canadian Mineralogist: 43: 1839-1894.

Internet Links for IriginiteHide

Localities for IriginiteHide

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.
Australia
 
  • Queensland
    • Charters Towers Region
Sue Koepke collection, Frank Radke ID
Canada
 
  • Nunavut
    • Kivalliq Region
      • Baker Lake
Richard Gunter specimen
Democratic Republic of the Congo
 
  • Katanga (Shaba)
    • Kambove District
      • Shinkolobwe
Mineralogical Record: 20: 287-288.
France
 
  • Occitanie
    • Hérault
      • Le Puech
[Le Règne Minéral 1997, 13, p.5-18]; Bariand, P., Bachet, B., Brassy, C., Medenbach, O., Deliens, M., Vautier, R., & Piret, P. (1993) A New Uranium Mineral from the Talmessi Mine, Iran, and Rabejac, France. Mineralogical Record: 24: 463-467
Germany
 
  • Saxony
    • Vogtland
      • Oelsnitz
Gröbner, J. and Kolitsch, U. (2007): The minerals of the uranium prospect at Tirpersdorf, Vogtland. Lapis 32, 37-42; 58. (in German)
Kazakhstan
 
  • Karaganda
    • Shet District
      • Mointy (Moyynty)
        • Mointy Railway Station
          • Shunak Mts
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow; Yegorov, B. L., Dora, A. D., & Senderova, V. M. (1970). Melkovite, a new phosphomolybdate from the oxidized zone. International Geology Review, 12(12), 1411-1415.
  • Zhambyl
    • Chu-Ili Mts
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
Mexico
 
  • Sonora
    • Mun. de Bacoachi
      • Bacoachi
Analysis by and from the collection of Sid Williams.
Russia (TL)
 
  • Eastern-Siberian Region
    • Sakha Republic (Yakutia)
      • Aldan Shield
        • Chara and Tokko Rivers Confluence
          • Torgo River Basin
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
South Africa
 
  • Western Cape Province
    • Central Karoo District
      • Beaufort West
Minerals of South Africa
USA
 
  • Arizona
    • Coconino Co.
      • Cameron District
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.
        • Cameron area
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 260.
  • Colorado
    • San Juan Co.
      • Elk Park
Minerals of Colorado (1997) Eckel, E. B.
  • South Dakota
    • Pennington Co.
      • Scenic
SDSMT Bull 18 Roberts and Rapp "Mineralogy of the Black Hills"
  • Texas
    • Karnes Co.
      • Karnes Uranium District
U.S. Geological Survey,2005,Mineral Resources Data System :U.S. Geological Survey,Reston, Virginia
Mineral and/or Locality  
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