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Richellite

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Formula:
CaFe3+2(PO4)2(OH,F)2
Colour:
Yellow to yellow-brown, reddish brown
Lustre:
Sub-Vitreous, Greasy
Hardness:
2 - 3
Crystal System:
Amorphous
Name:
For the type locality at Richelle, Liège Province, Belgium.
Occurs as a secondary (?) mineral in phosphatic sedimentary rocks.


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Classification of RichelliteHide

Approved, 'Grandfathered' (first described prior to 1959), Questionable
8.BB.90

8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
B : With only medium-sized cations, (OH, etc.):RO4 about 1:1
42.13.2.1

42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
13 : Miscellaneous
22.1.27

22 : Phosphates, Arsenates or Vanadates with other Anions
1 : Phosphates, arsenates or vanadates with fluoride

Physical Properties of RichelliteHide

Sub-Vitreous, Greasy
Transparency:
Translucent
Comment:
Greasy to hornlike.
Colour:
Yellow to yellow-brown, reddish brown
Streak:
Reddish to yellowish brown
Hardness:
2 - 3 on Mohs scale

Optical Data of RichelliteHide

Type:
Isotropic

Chemical Properties of RichelliteHide

Formula:
CaFe3+2(PO4)2(OH,F)2

Crystallography of RichelliteHide

Crystal System:
Amorphous
Cell Parameters:
a = 5.18 Å, c = 12.61 Å
Ratio:
a:c = 1 : 2.434
Z:
1
Morphology:
Radial-fibrous globules, foliated or compact. Commonly massive.
Comment:
(Nearly) amorphous (reflections at ~15 and ~5.4 A, both very diffuse and broad). Heated (500°C) material is "tetragonal."

Type Occurrence of RichelliteHide

Place of Conservation of Type Material:
University of Liège, Liège, Belgium: #9361, #9375.
Geological Setting of Type Material:
Phosphatic sedimentary rocks
Associated Minerals at Type Locality:

Other Language Names for RichelliteHide

German:Richellit
Simplified Chinese:土氟磷铁矿
Spanish:Richellita
Traditional Chinese:土氟磷鐵礦

Common AssociatesHide

Associated Minerals Based on Photo Data:
Koninckite1 photo of Richellite associated with Koninckite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

8.BB.XArsenowagneriteMg2(AsO4)FMon. 2/m : P21/b
8.BB.05AmblygoniteLiAl(PO4)FTric. 1 : P1
8.BB.05MontebrasiteLiAl(PO4)(OH)Tric. 1 : P1
8.BB.05TavoriteLiFe3+(PO4)(OH)Tric. 1 : P1
8.BB.10Triplite(Mn2+,Fe2+)2(PO4)(F,OH)Mon. 2/m
8.BB.10Zwieselite(Fe2+,Mn2+)2(PO4)FMon. 2/m : P21/b
8.BB.15SarkiniteMn2+2(AsO4)(OH)Mon. 2/m : P2/m
8.BB.15Triploidite(Mn2+,Fe2+)2(PO4)(OH)Mon. 2/m : P2/b
8.BB.15Wagnerite(Mg,Fe2+)2(PO4)FMon. 2/m : P21/b
8.BB.15Wolfeite(Fe2+,Mn2+)2(PO4)(OH)Mon. 2/m : P21/b
8.BB.15Stanĕkite(Mn2+,Fe2+,Mg)Fe3+(PO4)OMon.
8.BB.15JoosteiteMn2+(Mn3+,Fe3+)(PO4)OMon. 2/m
8.BB.15HydroxylwagneriteMg2(PO4)(OH)Mon. 2/m : P21/b
8.BB.20HoltedahliteMg2(PO4)(OH)Trig. 3m : P3 1m
8.BB.20Satterlyite(Fe2+,Mg,Fe)12(PO4)5(PO3OH)(OH,O)6Trig. 3m (3 2/m) : P3 1m
8.BB.25AlthausiteMg4(PO4)2(OH,O)(F,☐)Orth. mmm (2/m 2/m 2/m) : Pnma
8.BB.30AdamiteZn2(AsO4)(OH)Orth. mmm (2/m 2/m 2/m) : Pnnm
8.BB.30EveiteMn2+2(AsO4)(OH)Orth. mmm (2/m 2/m 2/m) : Pnnm
8.BB.30LibetheniteCu2(PO4)(OH)Orth. mmm (2/m 2/m 2/m) : Pnnm
8.BB.30OliveniteCu2(AsO4)(OH)Mon. 2/m : P21/m
8.BB.30ZincolibetheniteCuZn(PO4)(OH)Orth. mmm (2/m 2/m 2/m) : Pnnm
8.BB.30ZincoliveniteCuZn(AsO4)(OH)Orth. mmm (2/m 2/m 2/m) : Pnnm
8.BB.30AuriacusiteFe3+Cu2+(AsO4)OOrth. mmm (2/m 2/m 2/m) : Pnnm
8.BB.35ParadamiteZn2(AsO4)(OH)Tric. 1 : P1
8.BB.35TarbuttiteZn2(PO4)(OH)Tric. 1 : P1
8.BB.40BarbosaliteFe2+Fe3+2(PO4)2(OH)2Mon. 2/m : P21/b
8.BB.40HentscheliteCuFe3+2(PO4)2(OH)2Mon.
8.BB.40Lazulite(Mg,Fe2+)Al2(PO4)2(OH)2Mon. 2/m : P21/b
8.BB.40ScorzaliteFe2+Al2(PO4)2(OH)2Mon. 2/m : P21/b
8.BB.40WilhelmkleiniteZnFe3+2(AsO4)2(OH)2Mon.
8.BB.45TrolleiteAl4(PO4)3(OH)3Mon. 2/m : B2/b
8.BB.50NamibiteCu(BiO)2(VO4)(OH)Tric. 1 : P1
8.BB.55Phosphoellenbergerite(Mg,◻)2Mg12(PO4,PO3OH)6(PO3OH,CO3)2(OH)6Hex.
8.BB.60UrusoviteCuAl(AsO4)OMon.
8.BB.65TheoparacelsiteCu3(As2O7)(OH)2Orth.
8.BB.70TuraniteCu5(VO4)2(OH)4Tric. 1 : P1
8.BB.75StoiberiteCu5(VO4)2O2Mon.
8.BB.80FingeriteCu11(VO4)6O2Tric. 1 : P1
8.BB.85AverieviteCu6(VO4)2O2Cl2Trig.
8.BB.90LipscombiteFe2+Fe3+2(PO4)2(OH)2Tet.
8.BB.90ZinclipscombiteZnFe3+2(PO4)2(OH)2Tet. 4 2 2 : P43 21 2

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

22.1.1AmblygoniteLiAl(PO4)FTric. 1 : P1
22.1.2LacroixiteNaAl(PO4)FMon. 2/m : B2/b
22.1.3NatrophosphateNa7(PO4)2F · 19H2OIso. m3m (4/m 3 2/m) : Fd3c
22.1.5NacaphiteNa2Ca(PO4)FMon. 2/m : P21/b
22.1.6ArctiteNa2Ca4(PO4)3FTrig. 3m (3 2/m) : R3m
22.1.7NefedoviteNa5Ca4(PO4)4FTric.
22.1.9FluorapatiteCa5(PO4)3FHex. 6/m : P63/m
22.1.10HerderiteCaBePO4(F,OH)Mon. 2/m
22.1.11IsokiteCaMg(PO4)FMon. 2/m : B2/b
22.1.12PanasqueiraiteCaMg(PO4)(OH,F)Mon.
22.1.13BabefphiteBaBePO4(F,OH)Tet.
22.1.14FluelliteAl2(PO4)F2(OH) · 7H2OOrth. mmm (2/m 2/m 2/m) : Fddd
22.1.15MinyuliteKAl2(PO4)2(OH,F) · 4H2OOrth. mm2 : Pba2
22.1.16MoriniteNaCa2Al2(PO4)2(OH)F4 · 2H2OMon. 2/m
22.1.17BøggilditeNa2Sr2Al2PO4F9Mon.
22.1.18FluorstrophiteSrCaSr3(PO4)3FHex. 6/m : P63/m
22.1.19ViitaniemiiteNa(Ca,Mn2+)Al(PO4)(F,OH)3Mon.
22.1.20VäyryneniteMn2+Be(PO4)(OH,F)Mon. 2/m : P21/b
22.1.21MaxwelliteNaFe3+(AsO4)FMon.
22.1.22Wagnerite(Mg,Fe2+)2(PO4)FMon. 2/m : P21/b
22.1.23Triplite(Mn2+,Fe2+)2(PO4)(F,OH)Mon. 2/m
22.1.24Magniotriplite(Mg,Fe2+,Mn2+)2PO4FMon.
22.1.25Zwieselite(Fe2+,Mn2+)2(PO4)FMon. 2/m : P21/b
22.1.26McauslaniteFe3Al2(PO4)3(PO3OH)F · 18H2OTric.
22.1.28SvabiteCa5(AsO4)3FHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
22.1.29TilasiteCaMg(AsO4)FMon. m : Bb
22.1.30Johnbaumite-MCa5(AsO4)3OHMon. 2/m : P21/m
22.1.31DurangiteNaAl(AsO4)FMon. 2/m : B2/b

Other InformationHide

Notes:
Readily soluble in acids.
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 RichelliteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Cesàro and Desprets (1883) Société géologique de Belgique, Liége, Annales, Mémoires: 10: 36.
Cesàro (1884) Société géologique de Belgique, Liége, Annales, Mémoires: 11: 257.
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.: 956-957.
McConnell, D. (1963) Thermocrystallization of richellite to produce a lazulite structure (calcium lipscombite). American Mineralogist 48, 300-307.
Jensen, M.C., J.C. Rota, and E.E. Foord (1995) The Gold Quarry mine, Carlin Trend, Eureka County, Nevada. Mineralogical Record, 26, 449–469.

Internet Links for RichelliteHide

Localities for RichelliteHide

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.
Belgium (TL)
 
  • Liège Province
    • Visé
Ann.Mem.;Soc.géol.Belgique (1883) 10, 36; 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: 763, 957.; R. Van Tassel, A.-M. Fransolet and K. Abraham (1979) Drugmanite, Pb2(Fe3+,Al)(PO4)2(OH) · H2O, a New Mineral from Richelle, Belgium. Mineralogical Magazine 1979 43:463-467
  • Namur Province
    • Namur
Blondieau, M. et al. (2012): Minéralogie de la carrière de Beez, Province de Namur (Belgique). Le Règne Minéral, 104, 5-26.
Spain
 
  • Catalonia
    • Barcelona
      • Baix Llobregat
        • Gavà
          • Bruguers
Bareche, E (2005) "Els minerals de Catalunya. Segle XX" Ed. Grup Mineralògic Català, Barcelona, 269 p.
USA
 
  • Nevada
    • Eureka Co.
      • Carlin Trend
        • Maggie Creek Subdistrict
MinRec 26(5):449-469.
      • Lynn District
        • Elko
Mineralogical Record 26:467
Mineral and/or Locality  
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