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Richellite

A valid IMA mineral species - grandfathered - questionable
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06127430017271926144414.jpg
Richellite, etc.

Richelle, Visé, Liège, Wallonia, Belgium
05775020017271926175806.jpg
Richellite

Richelle, Visé, Liège, Wallonia, Belgium
06609060017271926204953.jpg
Richellite

Richelle, Visé, Liège, Wallonia, Belgium
06127430017271926144414.jpg
Richellite, etc.

Richelle, Visé, Liège, Wallonia, Belgium
05775020017271926175806.jpg
Richellite

Richelle, Visé, Liège, Wallonia, Belgium
06609060017271926204953.jpg
Richellite

Richelle, Visé, Liège, Wallonia, Belgium
06127430017271926144414.jpg
Richellite, etc.

Richelle, Visé, Liège, Wallonia, Belgium
05775020017271926175806.jpg
Richellite

Richelle, Visé, Liège, Wallonia, Belgium
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About RichelliteHide

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.


Unique IdentifiersHide

Mindat ID:
3413
Long-form identifier:
mindat:1:1:3413:1

IMA Classification of RichelliteHide

IMA status:
Approved, 'Grandfathered' (first described prior to 1959), Questionable
First published:
1883
Type description reference:
Cesàro, G., Despret, G. (1883) La richellite, nouvelle espèce minérale des environs de Visé. Annales de la Société géologique de Belgique: 10: 36-44.

Classification of RichelliteHide

Strunz-mindat (2026):
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
Dana 8th ed.:
42.13.2.1

42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
13 : Miscellaneous
Hey's CIM Ref.:
22.1.27

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

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference for Standard
RheIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of RichelliteHide

Lustre:
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

Chemistry of RichelliteHide

Mindat Formula:
CaFe3+2(PO4)2(OH,F)2
Element Weights:
Element% weight
O42.583 %
Fe29.727 %
P16.487 %
Ca10.667 %
H0.537 %

Calculated from ideal end-member formula.
O
Fe
P
Ca
H
Elements listed:
Ca, F, Fe, H, O, P - search for minerals with similar chemistry

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."

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Near-surface Processes
21 : Chemically precipitated carbonate, phosphate, iron formations
Stage 7: Great Oxidation Event<2.4
47a : [Near-surface hydration of prior minerals]
47c : [Carbonates, phosphates, borates, nitrates]

Type Occurrence of RichelliteHide

Type Locality:
ⓘ Richelle, Visé, Liège, Wallonia, Belgium
General Appearance of Type Material:
Creamy yellow masses.
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:
AllophaneHalloysiteKoninckite
Reference:
Cesàro, G., Despret, G. (1883) La richellite, nouvelle espèce minérale des environs de Visé. Annales de la Société géologique de Belgique: 10: 36-44.

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

Associations Based on Photo Data:
3 photos of Richellite associated with DelvauxiteCaFe4(PO4,SO4)2(OH)8 · 4-6H2O not confirmed
2 photos of Richellite associated with 'Smoky Quartz'SiO2
1 photo of Richellite associated with EosphoriteMn2+Al(PO4)(OH)2 · H2O
1 photo of Richellite associated with KoninckiteFe3+PO4 · 3H2O
1 photo of Richellite associated with QuartzSiO2

Related Minerals - Strunz-mindat GroupingHide

8.BB.MoabiteNiFe3+(PO4)OOrth. mmm(2/m2/m2/m) : Pnma
8.BB.TilasiteCaMg(AsO4)FMon.
8.BB.PaulgrothiteCu9Fe3+O4(PO4)4Cl3Orth. mm2 : Cmc21
8.BB.KarlditmariteCu9O4(PO4)2(SO4)2Tric. 1 : P1
8.BB.MilkovoiteCu4O(PO4)(AsO4)Orth. mmm(2/m2/m2/m) : Pnma
8.BB.XArsenowagneriteMg2(AsO4)FMon. 2/m : P21/b
8.BB.05TavoriteLiFe3+(PO4)(OH)Tric. 1 : P1
8.BB.05AmblygoniteLiAl(PO4)FTric. 1 : P1
8.BB.05MontebrasiteLiAl(PO4)(OH)Tric. 1 : P1
8.BB.10ZwieseliteFe2+2(PO4)FMon. 2/m : P21/b
8.BB.10TripliteMn2+2(PO4)FMon. 2/m
8.BB.15'Unnamed (Sb-analogue of Auriacusite)'Fe3+Cu2+[(Sb,As)O4]O
8.BB.15JoosteiteMn2+(Mn3+,Fe3+)(PO4)OMon. 2/m
8.BB.15HydroxylwagneriteMg2(PO4)(OH)Mon. 2/m : P21/b
8.BB.15WagneriteMg2(PO4)FMon. 2/m : P21/b
8.BB.15Stanĕkite(Mn2+,Fe2+,Mg)Fe3+(PO4)OMon. 2/m : P21/b
8.BB.15TriploiditeMn2+2(PO4)(OH)Mon. 2/m : P2/b
8.BB.15SarkiniteMn2+2(AsO4)(OH)Mon. 2/m : P21/b
8.BB.15WolfeiteFe2+2(PO4)(OH)Mon. 2/m : P21/b
8.BB.20HoltedahliteMg2(PO4)(OH)Trig. 3m : P31m
8.BB.20Satterlyite(Fe2+,Mg,Fe)12(PO4)5(PO3OH)(OH,O)6Trig. 3m(32/m) : P31m
8.BB.25AlthausiteMg4(PO4)2(OH,O)(F,◻)Orth. mmm(2/m2/m2/m) : Pnma
8.BB.30ZincoliveniteCuZn(AsO4)(OH)Orth. mmm(2/m2/m2/m) : Pnnm
8.BB.30AdamiteZn2(AsO4)(OH)Orth. mmm(2/m2/m2/m) : Pnnm
8.BB.30LibetheniteCu2(PO4)(OH)Orth. mmm(2/m2/m2/m) : Pnnm
8.BB.30ZincolibetheniteCuZn(PO4)(OH)Orth. mmm(2/m2/m2/m) : Pnnm
8.BB.30EveiteMn2+2(AsO4)(OH)Orth. mmm(2/m2/m2/m) : Pnnm
8.BB.30OliveniteCu2(AsO4)(OH)Mon. 2/m : P21/m
8.BB.30AuriacusiteFe3+Cu2+(AsO4)OOrth. mmm(2/m2/m2/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.40ScorzaliteFe2+Al2(PO4)2(OH)2Mon. 2/m : P21/b
8.BB.40LazuliteMgAl2(PO4)2(OH)2Mon. 2/m : P21/b
8.BB.40MeizhouiteFe2+V3+2(PO4)2(OH)2Mon. 2/m : P21/b
8.BB.40HentscheliteCuFe3+2(PO4)2(OH)2Mon. 2/m : P21/m
8.BB.40WilhelmkleiniteZnFe3+2(AsO4)2(OH)2Mon. 2/m : P21/m
8.BB.45DokuchaeviteCu8O2(VO4)3Cl3Tric. 1 : P1
8.BB.45TrolleiteAl4(PO4)3(OH)3Mon. 2/m : B2/b
8.BB.45YaroshevskiteCu9O2(VO4)4Cl2 Tric. 1 : P1
8.BB.50NamibiteCu(BiO)2(VO4)(OH)Tric. 1 : P1
8.BB.50Aleutite[Cu5O2](AsO4)(VO4) · (Cu,K,Pb,Rb,Cs,)ClMon. 2/m : B2/m
8.BB.52aEriclaxmaniteCu4O(AsO4)2Tric. 1 : P1
8.BB.52bKozyrevskiteCu4O(AsO4)2Orth. mmm(2/m2/m2/m) : Pnma
8.BB.55Phosphoellenbergerite(Mg,◻)2Mg12(PO4,PO3OH)6(PO3OH,CO3)2(OH)6Hex. 6mm : P63mc
8.BB.55PopoviteCu5O2(AsO4)2Tric. 1 : P1
8.BB.60UrusoviteCuAl(AsO4)OMon. 2/m : P21/b
8.BB.65TheoparacelsiteCu3(As2O7)(OH)2Orth. mmm(2/m2/m2/m) : Pmma
8.BB.70TuraniteCu5(VO4)2(OH)4Tric. 1 : P1
8.BB.75StoiberiteCu5(VO4)2O2Mon. 2/m
8.BB.80FingeriteCu11(VO4)6O2Tric. 1 : P1
8.BB.85AverieviteCu6(VO4)2O2Cl2Trig. 3 : P3
8.BB.90LipscombiteFe2+Fe3+2(PO4)2(OH)2Tet. 422 : P41212
8.BB.90ZinclipscombiteZnFe3+2(PO4)2(OH)2Tet. 422 : P43212

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.

Internet Links for RichelliteHide

References for RichelliteHide

Localities for RichelliteHide

Showing 6 localities.

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.
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Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and 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 (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Belgium (TL)
 
  • Wallonia
    • Liège
      • Visé
Jockin (en collaboration avec l'université de Liège) +7 other references
    • Namur
      • Namur
Blondieau et al. (2012)
Russia
 
  • Moscow Oblast
    • Ruzsky District
Ivan Novikov analytical data
Spain
 
  • Catalonia
    • Barcelona
      • Baix Llobregat
        • Gavà
          • Bruguers
Bareche (2005)
USA
 
  • Nevada
    • Eureka County
      • Carlin Trend
        • Maggie Creek Mining Subdistrict
Newmont Mining Corporation
      • Lynn Mining District
Jensen et al. (1995)
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