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Ramdohrite

A valid IMA mineral species - grandfathered
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About RamdohriteHide

08982210014946777064179.jpg
Prof. Paul Ramdohr
Formula:
Pb5.9Fe0.1Mn0.1In0.1Cd0.2Ag2.8Sb10.8S24
Colour:
Grey, bluish black
Lustre:
Metallic
Hardness:
2
Specific Gravity:
5.43
Crystal System:
Monoclinic
Name:
Named in honor of Paul Ramdohr (1 January 1890, Überlingen, Germany – 8 March 1985, Hohensachsen/Weinheim, Germany), mineralogist University of Heidelberg, Germany. He researched ore deposits and was a pioneer of ore microscopy. Among numerous medals, he was awarded the Roebling Medal (1962), the Penrose Medal (1972), and the Leonard Medal (1979).
Type locality ramdohrite has a significant Cd component (Moëlo et al., 1989), and is compositionally close to fizelyite, but it is not known if there is a solid solution (a Cd-rich fizelyite ?), or a miscibility gap.

Chemically somewhat comparable to menchettiite, oyonite, uchucchacuaite, lasmanisite and 'dürfeldtite'.


Unique IdentifiersHide

Mindat ID:
3355
Long-form identifier:
mindat:1:1:3355:4
GUID
(UUID V4):
34f35055-a28e-4388-bead-993bc1b7dfec

IMA Classification of RamdohriteHide

Approved, 'Grandfathered' (first described prior to 1959)
IMA Formula:
Pb5.9Fe0.1Mn0.1In0.1Cd0.2Ag2.8Sb10.8S24
First published:
1930

Classification of RamdohriteHide

2.JB.40a

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
J : Sulfosalts of PbS archetype
B : Galena derivatives, with Pb
3.4.15.6

3 : SULFOSALTS
4 : ø = 3
5.7.23

5 : Sulphosalts - Sulpharsenites and Sulphobismuthites (those containing Sn, Ge,or V are in Section 6)
7 : Sulpharsenites etc. of Pb and other metals

Mineral SymbolsHide

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.

SymbolSourceReference
RdhIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43
RdrThe Canadian Mineralogist (2019)The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download

Physical Properties of RamdohriteHide

Metallic
Transparency:
Opaque
Colour:
Grey, bluish black
Streak:
Black, grey
Hardness:
Tenacity:
Brittle
Fracture:
Irregular/Uneven
Density:
5.43 g/cm3 (Measured)    5.543 g/cm3 (Calculated)

Optical Data of RamdohriteHide

Anisotropism:
Moderate
Reflectivity:
WavelengthR1R2
400nm39.3%43.1%
420nm38.8%42.8%
440nm38.3%42.5%
460nm37.8%42.2%
480nm37.4%42.0%
500nm36.9%41.6%
520nm36.5%41.2%
540nm36.0%40.9%
560nm35.7%40.5%
580nm35.3%40.2%
600nm34.8%39.7%
620nm34.4%39.2%
640nm34.0%38.7%
660nm33.4%38.0%
680nm32.8%37.3%
700nm32.0%36.4%

Reflectance graph
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 43.1%.
R1 shown in black, R2 shown in red
Colour in reflected light:
White
Pleochroism:
Weak
Comments:
Very weak.

Chemistry of RamdohriteHide

Mindat Formula:
Pb5.9Fe0.1Mn0.1In0.1Cd0.2Ag2.8Sb10.8S24
Common Impurities:
Fe,Cd,In

Crystallography of RamdohriteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Cell Parameters:
a = 8.7348(3) Å, b = 13.0543(4) Å, c = 19.3117(6) Å
β = 90.179(2)°
Ratio:
a:b:c = 0.669 : 1 : 1.479
Unit Cell V:
2,202.04 ų (Calculated from Unit Cell)
Twinning:
Lamellar on (010).
Comment:
Space group P21/n. Originally given cell: a = 13.09, b = 19.24, c = 8.73 A, beta = 90.3°.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0014713RamdohriteMakovicky E, Mumme W G (1983) The crystal structure of ramdohrite, Pb6Sb11Ag3S24, and its implications for the andorite group and zinckenite Neues Jahrbuch fur Mineralogie, Abhandlungen 147 58-791983Chocaya Mine, Potosi, Bolivia0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.82 Å(20)
3.48 Å(30)
3.32 Å(100)
3.04 Å(30)
2.94 Å(60)
2.78 Å(50)
2.21 Å(50)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
High-𝑇 alteration and/or metamorphism
33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12])

Type Occurrence of RamdohriteHide

General Appearance of Type Material:
Long prismatic to thick lance-shaped reticulating individuals in fine grained quartz.
Place of Conservation of Type Material:
National Museum of Natural History, Washington, D.C., USA (R6595).
Associated Minerals at Type Locality:
Reference:
Ahlfeld, F. (1930) Ramdohrit, ein neues mineral aus Bolivien. Centralblatt für Mineralogie, Geologie und Paläontologie: 8: 365-367.

Other Language Names for RamdohriteHide

German:Ramdohrit
Simplified Chinese:辉锑银铅矿
Spanish:Ramdohrita

Varieties of RamdohriteHide

Relationship of Ramdohrite to other SpeciesHide

Other Members of this group:
AndreadiniiteCuHgAg7Pb7Sb24S48Mon. 2/m : P21/b
ArsenquatrandoriteAg17.6Pb12.8Sb38.1As11.5S96Mon. 2/m : P21/b
AschamalmitePb6-3xBi2+xS9Mon. 2/m : B2/m
Clino-oscarkempffiteAg15Pb6Sb21Bi18S72Mon. 2/m : P21/b
ErzwiesiteAg8Pb12Bi16S40Orth. mmm (2/m 2/m 2/m) : Cmcm
EskimoiteAg7Pb10Bi15S36Mon.
FizélyiteAg5Pb14Sb21S48 Mon. 2/m
GustaviteAgPbBi3S6Orth. mmm (2/m 2/m 2/m)
HeyrovskýitePb6Bi2S9Orth. mmm (2/m 2/m 2/m) : Cccm
HolubiteAg3Pb6(Sb8Bi3)S24Mon. 2/m
JasrouxiteAg16Pb4(Sb24As16)S72Tric. 1 : P1
LasmanisiteAg12Pb13Mn11Sb44S96Orth. 2 2 2 : P21 21 21
LillianitePb3-2xAgxBi2+xS6Orth. mmm (2/m 2/m 2/m)
MenchettiiteAgPb2.40Mn1.60Sb3As2S12Mon. 2/m : P21/b
OscarkempffiteAg10Pb4(Sb17Bi9)S48Orth. mm2
OurayiteAg3Pb4Bi5S13Orth.
OyoniteAg3Mn2Pb4Sb7As4S24Mon. 2/m
QuatrandoriteAgPbSb3S6Mon. 2/m : P21/b
RoshchiniteAg19Pb10Sb51S96Orth. mmm (2/m 2/m 2/m) : Pnma
SchirmeritePbAgBi3S6 - Pb3Ag1.5Bi3.5S9Orth.
SenandoriteAgPbSb3S6Orth. mm2 : Pmn21
StaročeskéiteAg0.70Pb1.60(Bi1.35Sb1.35)Σ2.70S6Orth. mmm (2/m 2/m 2/m) : Cmcm
TerrywallaceiteAgPb(Sb,Bi)3S6 Mon. 2/m : P21/b
TreasuriteAg7Pb6Bi15S32Mon.
UchucchacuaiteAgMnPb3Sb5S12Orth. mmm (2/m 2/m 2/m) : Pmmm
UstarasitePb(Bi,Sb)6S10 (?)
VikingiteAg5Pb8Bi13S30Mon. 2/m : B2/m
XilingolitePb3Bi2S6Mon.
Structurally related to group(s):
Ramdohrite-Lillianite GroupImprecise and obsolete name.

Common AssociatesHide

Associated Minerals Based on Photo Data:
1 photo of Ramdohrite associated with PyriteFeS2
1 photo of Ramdohrite associated with BournonitePbCuSbS3

Related Minerals - Strunz-mindat GroupingHide

2.JB.SenandoriteAgPbSb3S6Orth. mm2 : Pmn21
2.JB.OscarkempffiteAg10Pb4(Sb17Bi9)S48Orth. mm2
2.JB.ChukotkaiteAgPb7Sb5S15Mon. 2/m : P21/b
2.JB.ArsenquatrandoriteAg17.6Pb12.8Sb38.1As11.5S96Mon. 2/m : P21/b
2.JB.Clino-oscarkempffiteAg15Pb6Sb21Bi18S72Mon. 2/m : P21/b
2.JB.AndreadiniiteCuHgAg7Pb7Sb24S48Mon. 2/m : P21/b
2.JB.GinelfiteAg2(Ag0.5Fe)TlPb23.5(Sb,As)33.5S76Tric. 1 : P1
2.JB.LazerckeriteAg3.75Pb4.50(Sb7.75Bi4)S24Mon. 2/m
2.JB.LasmanisiteAg12Pb13Mn11Sb44S96Orth. 2 2 2 : P21 21 21
2.JB.MontpelvouxiteAgPb16Sb27As18S84Tric. 1 : P1
2.JB.SelenojunoiteCu2Pb3Bi8Se16Mon. 2/m : B2/m
2.JB.05DiaphoriteAg3Pb2Sb3S8Mon. 2/m : P21/b
2.JB.10CosalitePb2Bi2S5Orth. mmm (2/m 2/m 2/m)
2.JB.15FreieslebeniteAgPbSbS3Mon. 2/m : P21/b
2.JB.15MarriteAgPbAsS3Mon. 2/m : P21/b
2.JB.20CannizzaritePb48Bi56S132Mon. 2/m : P21/m
2.JB.20WittitePb9Bi12(S,Se)27Mon.
2.JB.25aJunoiteCu2Pb3Bi8(S,Se)16Mon. 2/m : B2/m
2.JB.25iNeyiteAg2Cu6Pb25Bi26S68Mon. 2/m : B2/m
2.JB.25cNordströmiteCuPb3Bi7(Se4S10)Mon. 2/m : P21/m
2.JB.25gNuffielditeCu1.4Pb2.4Bi2.4Sb0.2S7Orth. mmm (2/m 2/m 2/m)
2.JB.25dProuditeCuPb7.5Bi9.33(S,Se)22Mon. 2/m : B2/m
2.JB.25hWeibullitePb5Bi8Se7S11Orth. mmm (2/m 2/m 2/m) : Pnma
2.JB.25bFelbertaliteCu2Pb6Bi8S19Mon. 2/m : B2/m
2.JB.25jRouxeliteCu2HgPb23Sb27S65.5Mon. 2/m : B2/m
2.JB.25fÁngelaiteCu2AgPbBiS4Orth. mmm (2/m 2/m 2/m) : Pnma
2.JB.25iCuproneyiteCu7Pb27Bi25S68Mon. 2/m : B2/m
2.JB.30aGeocronitePb14Sb6S23Mon. 2/m : P21/m
2.JB.30aJordanitePb14As6S23Mon. 2/m : P21/m
2.JB.30bKirkiitePb10Bi3As3S19Mon. 2/m : P21/m
2.JB.30cTsugaruitePb28As15S50ClOrth. mm2 : Pnn2
2.JB.30aMarcobaldiitePb12(Sb3As2Bi)Σ6S21Tric. 1 : P1
2.JB.30aArsenmarcobaldiitePb12(As3.2Sb2.8)Σ6S21Tric. 1 : P1
2.JB.35cPillaitePb9Sb10S23ClO0.5Mon. 2/m : B2/m
2.JB.35aZinkenitePb9Sb22S42Hex. 6 : P63
2.JB.35bScainiitePb14Sb30S54O5Mon. 2/m : B2/m
2.JB.35dPellouxite(Cu,Ag)Pb10Sb12S27O(Cl,S)0.6Mon. 2/m : B2/m
2.JB.35fTubuliteAg2Pb22Sb20S53 Mon. m : Pb
2.JB.35eChovanitePb15-2xSb14+2xS36Ox (x ~ 0.2)Mon. 2/m : B2/m
2.JB.40bAschamalmitePb6-3xBi2+xS9Mon. 2/m : B2/m
2.JB.40aBursaitePb5Bi4S11 (?)Orth.
2.JB.40bEskimoiteAg7Pb10Bi15S36Mon.
2.JB.40aFizélyiteAg5Pb14Sb21S48 Mon. 2/m
2.JB.40aGustaviteAgPbBi3S6Orth. mmm (2/m 2/m 2/m)
2.JB.40aLillianitePb3-2xAgxBi2+xS6Orth. mmm (2/m 2/m 2/m)
2.JB.40cOurayiteAg3Pb4Bi5S13Orth.
2.JB.40aRoshchiniteAg19Pb10Sb51S96Orth. mmm (2/m 2/m 2/m) : Pnma
2.JB.40dSchirmeritePbAgBi3S6 - Pb3Ag1.5Bi3.5S9Orth.
2.JB.40aTreasuriteAg7Pb6Bi15S32Mon.
2.JB.40aUchucchacuaiteAgMnPb3Sb5S12Orth. mmm (2/m 2/m 2/m) : Pmmm
2.JB.40eUstarasitePb(Bi,Sb)6S10 (?)
2.JB.40aVikingiteAg5Pb8Bi13S30Mon. 2/m : B2/m
2.JB.40aXilingolitePb3Bi2S6Mon.
2.JB.40bHeyrovskýitePb6Bi2S9Orth. mmm (2/m 2/m 2/m) : Cccm
2.JB.40UM1988-05-S:AgBiCuHgPb(Hg,Ag,Cu,Pb)5Pb5Bi11S27
2.JB.40UM1988-06-S:AgBiCuHgPb(Pb,Hg)12(Cu,Ag)3(Bi,Sb)10(S,Te)27
2.JB.40aQuatrandoriteAgPbSb3S6Mon. 2/m : P21/b
2.JB.40aMenchettiiteAgPb2.40Mn1.60Sb3As2S12Mon. 2/m : P21/b
2.JB.40aTerrywallaceiteAgPb(Sb,Bi)3S6 Mon. 2/m : P21/b
2.JB.40aJasrouxiteAg16Pb4(Sb24As16)S72Tric. 1 : P1
2.JB.40aErzwiesiteAg8Pb12Bi16S40Orth. mmm (2/m 2/m 2/m) : Cmcm
2.JB.40aStaročeskéiteAg0.70Pb1.60(Bi1.35Sb1.35)Σ2.70S6Orth. mmm (2/m 2/m 2/m) : Cmcm
2.JB.40aOyoniteAg3Mn2Pb4Sb7As4S24Mon. 2/m
2.JB.40aHolubiteAg3Pb6(Sb8Bi3)S24Mon. 2/m
2.JB.40bBaiamareiteAg4Pb12Fe4Sb20S48Mon. 2/m
2.JB.55GratonitePb9As4S15Trig. 3m : R3m
2.JB.60MarrucciiteHg3Pb16Sb18S46Mon. 2/m : B2/m
2.JB.65VurroitePb20Sn2(Bi,As)22S54Cl6Mon. 2/m : B2/b
2.JB.65TazieffitePb20Cd2(As,Bi)22S50Cl10Mon. 2/m : B2/b
2.JB.70DaliranitePbHgAs2S5Mon.

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.

Internet Links for RamdohriteHide

References for RamdohriteHide

Reference List:

Localities for RamdohriteHide

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 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.
Argentina
 
  • Jujuy Province
    • Rinconada Department
      • Mina Pirquitas
DE BRODTKORB +1 other reference
          • San Miguel Open pit
Paar et al. (2000)
Bolivia
 
  • Oruro
    • Cercado Province
      • Oruro
Keutsch et al. (2007) +1 other reference
    • Poopó Province
Torres et al. (2019)
  • Potosí
    • Antonio Quijarro Province
      • Porco Municipality
        • Agua de Castilla
          • Porco
Kempff et al. (La Paz, 2009)
    • Sud Chichas Province
      • Atocha Municipality
        • Chocaya-Animas mining district (Animas-Chocaya mining district)
Knut Eldjarn Collection +1 other reference
The Mineralogical Record: 32: 461. +2 other references
collections of Alfredo Petrov & ... +1 other reference
Wilson (2001)
Federico Ahlfeld y Alejandro Schneider-Scherbina (1964)
Bulgaria
 
  • Kardzhali Province
    • Momchilgrad Municipality
      • Sedefche
Strashimirov et al. (2005)
Strashimirov et al. (2005)
China
 
  • Guangxi
    • Hechi
      • Nandan County
        • Dachang Sn-polymetallic ore field
Mineral Deposits 4 (1)
    • Nanning
      • Long'an County
Anthony
  • Hunan
    • Chenzhou
      • Yizhang Co.
        • Yaogangxian W-Sn ore field
Bosheng Zhou et al. (2002)
  • Jiangxi
    • Shangrao
      • Wannian Co.
Dong Zhensheng et al. (1996)
  • Sichuan
    • Garzê Autonomous Prefecture (Ganzi Autonomous Prefecture)
      • Baiyü County
Xiaoming Qu et al. (2001)
      • Garzê County (Ganzi County)
Gui He and Xipeng Hu (2009)
  • Yunnan
    • Honghe
      • Mengzi City
Xinpei Jiang (1994) +1 other reference
Finland
 
  • Southwest Finland
    • Salo
      • Kisko
Geological Survey of Finland ...
France
 
  • Auvergne-Rhône-Alpes
    • Haute-Loire
      • Brioude
        • Langeac
          • Marsanges
Moëlo et al. (1989)
  • Grand Est
    • Bas-Rhin
      • Sélestat-Erstein
        • Lalaye
Wittern (1997)
  • Pays de la Loire
    • Vendée
      • La Roche-sur-Yon
Moëlo et al. (1989)
Greece
 
  • Attica
    • East Attica
      • Lavreotiki
        • Lavrion Mining District
Voudouris et al. (2008)
India
 
  • Rajasthan
    • Bhilwara District
Holler et al. (1995)
Japan
 
  • Hokkaidō Prefecture
    • Shiribeshi Subprefecture
      • Furubira District
AMNH specimen
Mexico
 
  • Mexico
    • Temascaltepec Municipality
      • Temascaltepec de González (Temascaltepec)
Camprubi
North Macedonia
 
  • Kavadarci Municipality
    • Ržanovo
Boev et al. (1993)
Norway
 
  • Nordland
    • Rana
Nigel J. Cook
Cook (2001)
Peru
 
  • Ancash
    • Huaraz Province
      • Huaraz District
        • Huaraz
Olivo et al. (2003)
Romania
 
  • Maramureș County
    • Baia Mare
Papp et al. (2007)
Russia
 
  • Murmansk Oblast
    • Voron'i Tundry
A. A. Kalinin et al. (2016)
  • Sakha
    • Indigirka River Basin
      • Ust'-Nera
Jambor et al. (1994)
    • Verkhoyansk Fold Belt
      • Verkhoyansk Silver Province
Gamyanin et al. (1998) +1 other reference
  • Sverdlovsk Oblast
    • Serovsky District
      • Turya river
        • Tur'insk
Kasatkin et al. (2020)
Slovakia
 
  • Banská Bystrica Region
    • Revúca District
      • Chyžné
Bálintová T. et al. (Slovakia)
    • Žiar nad Hronom District
      • Kremnica
Martin Števko-unpublished
  • Prešov Region
    • Prešov District
      • Zlatá Baňa
Duda et. all.
specialities of chemical composition. ... +1 other reference
Spain
 
  • Andalusia
    • Almería
      • Pechina
        • Baños de Alhamilla
Rewitzer et al. (part2)
USA
 
  • California
    • Inyo County
      • Bishop Mining District (Tungsten Hills Mining District)
        • West Bishop
Van Nostrand Reinholt Press: 139 +2 other references
  • Michigan
    • Menominee County
Quigley +1 other reference
  • Washington
    • King County
      • Buena Vista Mining District
...
 
Mineral and/or Locality  
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