Ranciéite
A valid IMA mineral species - grandfathered
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About Ranciéite
View of the Becquey gallery entrance
Le Rancié Mine, Sem, Val-de-Sos, Foix, Ariège, Occitanie, France
Le Rancié Mine, Sem, Val-de-Sos, Foix, Ariège, Occitanie, France
Formula:
(Ca,Mn2+)0.2(Mn4+,Mn3+)O2 · 0.6H2O
Colour:
Black, brownish, violet
Lustre:
Metallic
Hardness:
2½ - 3
Specific Gravity:
3.20
Crystal System:
Trigonal
Member of:
Name:
Named after its discovery locality, the Le Rancié Mine, Sem, Vicdessos, Ariège, Midi-Pyrénées, France.
Isostructural with:
Ranciéite-Takanelite Series.
The calcium analogue of takanelite.
May be confused with todorokite, but X-ray diffraction data are distinctive.
Compare lagalyite and 'UM1979-06-O:CaHMn'.
The calcium analogue of takanelite.
May be confused with todorokite, but X-ray diffraction data are distinctive.
Compare lagalyite and 'UM1979-06-O:CaHMn'.
Name Encoding
ASCII-7:
Rancieite
Unique Identifiers
Mindat ID:
3360
Long-form identifier:
mindat:1:1:3360:8
IMA Classification of Ranciéite
Approved, 'Grandfathered' (first described prior to 1959)
IMA Formula:
(Ca,Mn2+)0.2(Mn4+,Mn3+)O2·0.6H2O
First published:
1859
Classification of Ranciéite
4.FL.40
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
F : Hydroxides (without V or U)
L : Hydroxides with H2O +- (OH); sheets of edge-sharing octahedra
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
F : Hydroxides (without V or U)
L : Hydroxides with H2O +- (OH); sheets of edge-sharing octahedra
7.10.1.1
7 : MULTIPLE OXIDES
10 : AB4X9
7 : MULTIPLE OXIDES
10 : AB4X9
7.4.16
7 : Oxides and Hydroxides
4 : Oxides of Be, Mg and the alkaline earths
7 : Oxides and Hydroxides
4 : Oxides of Be, Mg and the alkaline earths
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Rnc | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
| Rnc | Warr (2020) | Warr, L.N. (2020) Recommended abbreviations for the names of clay minerals and associated phases. Clay Minerals, 55, 261–264 doi:10.1180/clm.2020.30 |
Physical Properties of Ranciéite
Metallic
Colour:
Black, brownish, violet
Streak:
Dark brown
Hardness:
2½ - 3 on Mohs scale
Density:
3.20 g/cm3 (Measured)
Chemistry of Ranciéite
Mindat Formula:
(Ca,Mn2+)0.2(Mn4+,Mn3+)O2 · 0.6H2O
Element Weights:
Elements listed:
Crystallography of Ranciéite
Crystal System:
Trigonal
Class (H-M):
3 - Rhombohedral
Space Group:
P3
Cell Parameters:
a = 2.845 Å, c = 7.485 Å
Ratio:
a:c = 1 : 2.631
Unit Cell V:
52.47 ų (Calculated from Unit Cell)
Z:
1
Morphology:
Flaky.
Comment:
Data from Ertl et al. (2005); Strunz and Nickel (2001) gave a = 2.86, c= 7.50, Z = 0.25
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 7.49 Å | (100) |
| 3.74 Å | (14) |
| 2.463 Å | (10) |
| 2.342 Å | (6) |
| 2.064 Å | (2) |
| 1.758 Å | (2) |
| 1.425 Å | (4) |
| 1.397 Å | (2) |
Comments:
ICDD 22-718. Ranciéite XRD data appear "variable," depending on hydration state. Notes (by Uwe Kolitsch) regarding data from Ertl et al. (2005) : The reflection at 2.70 (4) appears highly questionable; it is not contained in a calculated pattern (based on the crystal structure refinement of Ertl et al. (2005)). (ii) The reflection at 9.55 (20) is also questionable since it is equally not contained in a calculated pattern; although such a reflection may be observed in the patterns of some ranciéite samples, it could be due to a mechanical admixture of todorokite.
Compare also :
9.55 (20)
7.50 (100)
3.71 (50)
2.70 (40)
2.46 (40)
2.34 (40)
2.04 (10)
Compare also :
9.55 (20)
7.50 (100)
3.71 (50)
2.70 (40)
2.46 (40)
2.34 (40)
2.04 (10)
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Near-surface Processes | |
| 21 : Chemically precipitated carbonate, phosphate, iron formations | |
| Stage 7: Great Oxidation Event | <2.4 |
| 45b : [Other oxidized fumarolic minerals] | |
| 47a : [Near-surface hydration of prior minerals] | |
| 47e : [Vanadates, chromates, manganates] |
Type Occurrence of Ranciéite
Place of Conservation of Type Material:
Muséum Nationale d’Histoire Naturelle, Paris, France.
Synonyms of Ranciéite
Other Language Names for Ranciéite
Relationship of Ranciéite to other Species
Member of:
Other Members of Birnessite Group:
| Birnessite | (Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O | Mon. 2/m : B2/m |
| Takanelite | (Mn,Ca)Mn4O9 · H2O | Hex. |
Forms a series with:
Common Associates
Associations Based on Photo Data:
| 21 photos of Ranciéite associated with Birnessite | (Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O |
| 21 photos of Ranciéite associated with Calcite | CaCO3 |
| 8 photos of Ranciéite associated with Goethite | Fe3+O(OH) |
| 8 photos of Ranciéite associated with Quartz | SiO2 |
| 8 photos of Ranciéite associated with Todorokite | (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O |
| 8 photos of Ranciéite associated with Aegirine | NaFe3+Si2O6 |
| 8 photos of Ranciéite associated with Microcline | K(AlSi3O8) |
| 5 photos of Ranciéite associated with Lepidocrocite | Fe3+O(OH) |
| 4 photos of Ranciéite associated with Opal | SiO2 · nH2O |
| 4 photos of Ranciéite associated with Malachite | Cu2(CO3)(OH)2 |
Related Minerals - Strunz-mindat Grouping
| 4.FL. | Trébeurdenite | Fe2+2Fe3+4O2(OH)10CO3 · 3H2O |
| 4.FL. | Mariakrite | [Ca4Al2(OH)12(H2O)4][Fe2S4] |
| 4.FL.05 | Muskoxite | Mg7Fe4O13 · 10H2O |
| 4.FL.05 | Jamborite | Ni2+1-xCo3+x(OH)2-x(SO4)x · nH2O |
| 4.FL.05 | Mössbauerite | Fe3+6O4(OH)8[CO3] · 3H2O |
| 4.FL.05 | Meixnerite | Mg6Al2(OH)16(OH)2 · 4H2O |
| 4.FL.05 | Woodallite | Mg6Cr2(OH)16Cl2 · 4H2O |
| 4.FL.05 | Fougèrite | Fe2+4Fe3+2(OH)12[CO3] · 3H2O |
| 4.FL.05 | Dritsite | Li2Al4(OH)12Cl2 · 3H2O |
| 4.FL.05 | Rotemite | Ca4Cr2(OH)12Cl2 · 4H2O |
| 4.FL.05 | Iowaite | Mg6Fe3+2(OH)16Cl2 · 4H2O |
| 4.FL.10 | Hydrocalumite | Ca4Al2(OH)12(Cl,CO3,OH)2 · 4H2O |
| 4.FL.15 | Kuzelite | Ca4Al2(OH)12[SO4] · 6H2O |
| 4.FL.20 | Jianshuiite | (Mg,Mn,Ca)Mn3O7 · 3H2O |
| 4.FL.20 | Ernienickelite | NiMn3O7 · 3H2O |
| 4.FL.20 | Aurorite | Mn2+Mn4+3O7 · 3H2O |
| 4.FL.20 | Chalcophanite | ZnMn4+3O7 · 3H2O |
| 4.FL.25 | Woodruffite | Zn2+x/2(Mn4+1-xMn3+x)O2 · yH2O |
| 4.FL.30 | Asbolane | (Ni,Co)2-xMn4+(O,OH)4 · nH2O |
| 4.FL.30 va | 'Lampadite' | Cu, Mn, O, H |
| 4.FL.35 | Buserite | Na4Mn14O27 · 21H2O |
| 4.FL.40 | Takanelite | (Mn,Ca)Mn4O9 · H2O |
| 4.FL.45 | Birnessite | (Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O |
| 4.FL.55 | Cianciulliite | Mn(Mg,Mn)2Zn2(OH)10 · 2-4H2O |
| 4.FL.60 | Jensenite | Cu3[TeO6] · 2H2O |
| 4.FL.65 | Leisingite | Cu2MgTe6+O6 · 6H2O |
| 4.FL.70 | Magnesiohongruiite-(Fe3+) | (Mg2Fe3+)Fe3+NbO7(OH) |
| 4.FL.70 | Akdalaite | Al10O14(OH)2 |
| 4.FL.75 | Cafetite | CaTi2O5 · H2O |
| 4.FL.80 | Mourite | UMo5O12(OH)10 |
| 4.FL.85 | Deloryite | Cu4(UO2)(MoO4)2(OH)6 |
| 4.FL.90 | Lagalyite | Ca2xMn1-xO2 · 1.5-2H2O |
| 4.FL.95 | 'Tunnerite' | |
| 4.FL.100 | Carbocalumite | Ca4Al2(OH)12(CO3) · 6H2O |
| 4.FL.100 | Mampsisite | Ca4Al2(CO3)(OH)12 · 5H2O |
Other Information
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 Ranciéite
mindat.org URL:
https://www.mindat.org/min-3360.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
External Links:
Mineral Dealers:
References for Ranciéite
Reference List:
Wadsley, A. D. (1950) Synthesis of some hydrated manganese minerals. American Mineralogist, 35 (7-8) 485-499
Kim, S. J. (1981) Layer structure in poorly crystalline manganese hydroxides: birnessite and rancieite. Acta Crystallographica Section A Foundations of Crystallography, 37 (a1). C186 doi:10.1107/s0108767381093999
Dunn, Pete J., Fleischer, Michael, Francis, Carl A., Langley, Richard H., Kissin, Stephen A., Shigley, Hames E., Vanko, David A., Zilczer, Janet A. (1984) New mineral names. American Mineralogist, 69 (7-8) 810-815
Nimfopoulos, M. K.; Michailidis, K. M.; Christofides, G. (1996) Zincian rancieite from the Kato Nevrokopi manganese deposits, Macedonia, northern Greece, in Manganese Mineralization: Geochemistry and Mineralogy of Terrestrial and Marine Deposits. Geological Society, London, Special Publications, 119 (1). 339-347 doi:10.1144/gsl.sp.1997.119.01.22
Ertl, Andreas, Pertlik, Franz, Prem, Markus, Post, Jeffrey E., Kim, Soo Jin, Brandstätter, Franz, Schuster, R. (2005) Ranciéite crystals from Friesach, Carinthia, Austria. European Journal of Mineralogy, 17 (1). 163-172 doi:10.1127/0935-1221/2005/0017-0163
Post, Jeffrey E., Heaney, Peter J., Ertl, Andreas (2008) Rietveld refinement of the ranciéite structure using synchrotron powder diffraction data. Powder Diffraction, 23 (1). 10-14 doi:10.1154/1.2836477
Localities for Ranciéite
Showing 240 localities.
symbol to view information about a locality.
The Locality List
- 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).
All localities listed without proper references should be considered as questionable.
Antarctica | |
| Kammerer (2011) |
Argentina | |
| Trueman et al. (2020) |
Australia | |
| Prof Ken McQueen presentation to New ... |
| Bottrill (2018) |
| R. Bottrill |
| |
Austria | |
| Ertl (2002) |
| Niedermayr (1997) +1 other reference |
| Ertl et al. (2005) +1 other reference |
| Auer et al. (2017) |
| C.Auer (2019) | |
| Zirkl (1984) | |
| Meixner (1981) |
| Niedermayr et al. (2001) |
| Niedermayr et al. (1995) |
| Taucher (1995) |
| matrixx 4 |
| Kolitsch (2018) |
| Ertl (2002) |
| Kolitsch et al. (2012) |
| Putz (2002) |
| Exel (1993) |
| R.Poeverlein (2016) |
| Kolitsch et al. (2012) |
| C.Auer (2016) |
| Postl (1992) |
| Matrixx 1 |
| Lapis 8 (4) |
| Hollerer (1999) |
| Postl (1998) |
| Postl et al. (1996) |
| Taucher (1989) |
| Taucher (1996) +1 other reference |
| Kolitsch et al. (2018) |
| Auer (2023) |
| Kolitsch (2015) |
Brazil | |
| SALLUN FILHO (orgs.) +1 other reference |
Bulgaria | |
| Banushev et al. (1994) |
| Radonova et al. (1967) +1 other reference |
Canada | |
| Laszlo Horvath pers. comm 10/06/2006 |
| HORVÁTH (2010) |
| Gunnar Farber |
China | |
| Shouquan Zhu (2001) |
| Jingqu Yao (1992) |
| Jingqu Yao (1992) | |
| Jingqu Yao (1992) |
| Zhongtang Yang et al. (2008) +1 other reference |
| Yuchun Yang (1990) |
Cuba | |
| Richmond et al. (1969) +1 other reference | |
| Potter et al. (1979) |
Czech Republic | |
| Matýsek et al. (2021) |
| Matýsek D. (Outer Western Carpathians) |
| Jirásek J. (2026) |
| Jirásek et al. (2018) |
Finland | |
| ilkka Mikkola collection |
France | |
| Wittern et al. (1997) |
| Perseil (1975) | |
| Perseil (1975) | |
| Wittern et al. (1997) |
| Wittern et al. (1997) |
| De Bondt (n.d.) | |
| Martaud (2013) | |
| Wittern et al. (1997) |
| Wittern et al. (1997) |
| Alain Schaefer collection |
| Wittern et al. (1997) | |
| Thierry Brunsperger collection |
| [American Mineralogist et al. (1969) +1 other reference |
| Patrice Queneau Collection visual identification. Confirmed. Analyzed by Nicolas Meisser (Naturéum) |
| Berbain et al. (2005) |
| Pinch (1977) |
| Chevalier et al. (1998) +1 other reference |
| Berbain et al. (2007) |
| erbain +2 other references | |
| Berbain et al. (2005) |
| Berbain et al. (2005) |
| Berbain et al. (2005) |
| Berbain et al. (2005) | |
| Berbain et al. (2005) | |
| Berbain et al. (2005) | |
| Pierrot et al. (1976) |
| Garric François +1 other reference |
| Collection Marcel Valladarès +1 other reference | |
| André MELLE collection - Georges ... |
Germany | |
| Lorenz (1998) +1 other reference |
| Lorenz (2004) |
| Schmitt (1997) |
| Gerstenberg (n.d.) |
| Belendorff (2021) |
| Petitjean et al. (2007) |
| Belendorff (2005) |
| Gröbner (2007) |
| Gröbner et al. (2009) |
| 50. +1 other reference |
| Schnorrer et al. (2002) +1 other reference |
| Schnorrer (1995) +1 other reference |
| Reinhardt (2011) |
| 54 +1 other reference | |
| Henrich (2008) |
| Weiß (1990) |
| Weiß (1990) |
| Marcus Vau Collection |
| Weiß (1990) |
| Blaß et al. (1993) |
| Blaß et al. (2002) |
| Gröbner et al. (2011) |
| Th.Lühr collection |
| Gröbner et al. (2011) |
| XRD and SEM-EDX analysis (T. Witzke) |
| Witzke et al. (2006) +1 other reference |
| Markus Gerstmann - Collection |
| Heider et al. (2022) |
| Gröbner et al. (2011) |
| Gröbner et al. (2008) |
Greece | |
| Rieck et al. (2020) |
| Rieck et al. (2020) |
| Bardossy et al. (1978) +1 other reference |
| Nimfopoulos et al. (1996) +1 other reference |
Hungary | |
| Szakáll et al. (1996) |
| Sándor Szakáll +1 other reference |
| Szakáll: Minerals of Rudabánya |
| Szakáll: Minerals of Rudabánya | |
| Szakáll et al. (1996) |
| Szakáll: Minerals of Szár Hill |
| Szakáll & Jánosi. Minerals of Hungary |
| Szakáll et al. (2010) |
| Szakáll et al. (1996) |
| Szakáll: 100 Hungarian Mineral Locality |
| |
Indonesia | |
| Milési et al. (1999) |
Iran | |
| Moinevaziri (2019) |
Italy | |
| Bernardini et al. (2021) |
| Barresi et al. (2005) |
| doi.org (n.d.) +2 other references |
| Barrese et al. (1986) +1 other reference |
| Redazionale (2005) |
| Balestra (2016) | |
| Pipino (1984) |
| Bedognè et al. (1993) +1 other reference |
| Bedognè et al. (1993) |
| P. Mattias- M. Guerra (2008) |
| Cámara et al. (2017) |
| Matteo Giai et al. (2023) +1 other reference |
| Barresi et al. (2) |
| Fernando Caboni et al. (2024) |
| Fernando Caboni et al. (2024) |
| Stara et al. (1996) |
| Stara et al. (1996) |
| Campostrini et al. (2011) |
| Mair (1986) |
| SEM-EDS analysis (AMI UK Service) +1 other reference |
| SEM/EDX analysis by AMI SIUK |
| Bortolozzi et al. (2013) |
| Erica Bittarello +3 other references |
| Bazzoni C. et al. (2011) |
| Bazzoni C. et al. (2011) | |
| A.Costantini (2015) | |
| Biagioni C. et al. (2016) |
| Bortolozzi (n.d.) |
| A. Longhi et al. (1979) |
| Longhi (1979) +1 other reference |
| Pegoraro et al. (2017) |
| EDX + XRD analysis by Gunter Blass |
| Pegoraro S. (2014) |
| Atti della giornata di Studio – ... |
Japan | |
| Yamada collection (Crystal World, Japan) |
| - (n.d.) |
| - (n.d.) |
| Mineralogical Journal Vol. 17 (1994) |
| - (n.d.) |
| - (n.d.) +1 other reference |
Luxembourg | |
| Heinen (1996) +1 other reference |
Mexico | |
| Cross (2006) |
Norway | |
| Nordrum et al. (2006) +1 other reference |
| Rune S. Selbekk (2010) |
Poland | |
| Muszyński M. et al. (2009) |
| Gołębiowska et al. (2010) +2 other references | |
| Ł. Kruszewski PXRD & EPMA data +1 other reference |
| Kruszewski et al. (2019) |
| Pieczka (2006) +1 other reference |
Portugal | |
| Pedro Alves analytical data and ... |
Romania | |
| Tudor Tamas et al. (2017) |
| Szakáll et al. (2010) |
| minerals-of-the-carpathians.eu (2008) |
| Hîrtopanu (1997) +1 other reference |
Russia | |
| webmineral.ru (2020) |
| Vera N. Smol'yaninova data |
| Kassandrov et al. (2009) |
| Kassandrov et al. (2009) | |
| Pavel M. Kartashov (n.d.) +1 other reference |
| Ivan Novikov find & collection |
| - (2001) |
| Pekov et al. (2013) |
| Semenov E.I. (1972) +1 other reference |
| Sharkov (2009) |
| Belogub et al. (2026) |
| Kasatkin et al. (2021) |
| Webmineral.ru (n.d.) |
Slovakia | |
| Koděra et al. (1986) |
| Aubrecht |
South Africa | |
| Cairncross et al. (1995) |
South Korea | |
| Choi et al. (2005) |
| Choi et al. (1992) | |
Spain | |
| Calvo Rebollar (2009) |
| Calvo Rebollar (2018) |
| Dill et al. (2023) |
| Rossi et al. (2010) |
| Calvo Rebollar (2009) |
| Analyzed by Joan Abella i Creus |
| Joan Abella i Creus (2012) |
| Oen (1974) |
| gr-mulhacen.foroactivo.com (2020) |
Switzerland | |
| Stalder et al. (1998) |
| Stalder et al. (1998) |
| |
| Brugger J. (1996) |
| Pavel M. Kartashov analythical data (2013) |
| Ansermet et al. (2021) |
Thailand | |
| Queneau (n.d.) |
Turkey | |
| Öztürk (1997) |
UK | |
| Ryback et al. (1992) +1 other reference |
| Tindle (2008) +1 other reference |
| Cotterell et al. (2008) +1 other reference |
Ukraine | |
| Geologiya SSSR (The geology of USSR) |
| Pavel M. Kartashov (n.d.) |
USA | |
| - (2008) |
| Anthony et al. (1995) |
| Luetcke (n.d.) |
| Bargar et al. (2009) |
| Anthony et al. (1995) |
| Howard (1987) |
| Plante (1992) |
| Travis Olds collection |
| Travis Olds collection |
| Castor et al. (2004) |
| Northrop et al. (1996) |
| Patrick Haynes |
| NDGS B-15 (Hendricks,1943) |
| Geology of Bottineau County (North Dakota Geological Survey) +1 other reference |
| Potter et al. (1979) +1 other reference |
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Emma adit, Ratteingraben, Guttaring, Sankt Veit an der Glan District, Carinthia, Austria