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Ramdohrite

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Prof. Paul Ramdohr
Formula:
(Cd,Mn,Fe)Ag5.5Pb12Sb21.5S48
System:
Monoclinic
Colour:
Grey, bluish black
Hardness:
2
Name:
For mineralogist Paul Ramdohr (1890-1985), University of Heidelberg, Germany.
Type locality ramdohrite has a significant Cd component (Moelo 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.

Classification of Ramdohrite

Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
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
mindat.org URL:
http://www.mindat.org/min-3355.html
Please feel free to link to this page.

First Recorded Occurrence of Ramdohrite

Year of Discovery:
1930

Physical Properties of Ramdohrite

Metallic
Diaphaneity (Transparency):
Opaque
Colour:
Grey, bluish black
Streak:
Black, grey
Hardness (Mohs):
2
Tenacity:
Brittle
Fracture:
Irregular/Uneven
Density:
5.43 g/cm3 (Measured)    

Crystallography of Ramdohrite

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 Volume:
V 2,202.04 ų (Calculated from Unit Cell)
Twinning:
Lamellar.
Comment:
Space group P21/n. Originally given cell: a = 13.09, b = 19.24, c = 8.73 A, beta = 90.3°.

Optical Data of Ramdohrite

Type:
Anisotropic
Anisotropism:
Moderate
Colour in reflected light:
White
Pleochroism:
Weak
Comments:
Very weak.

Chemical Properties of Ramdohrite

Formula:
(Cd,Mn,Fe)Ag5.5Pb12Sb21.5S48
Essential elements:
All elements listed in formula:
Common Impurities:
Fe,Cd,In

Relationship of Ramdohrite to other Species

Structurally related to group(s):
2.JB.05DiaphoriteAg3Pb2Sb3S8
2.JB.10CosalitePb2Bi2S5
2.JB.15FreieslebeniteAgPbSbS3
2.JB.15MarriteAgPbAsS3
2.JB.20CannizzaritePb4Bi6S13
2.JB.20WittitePb9Bi12(S,Se)27
2.JB.25aJunoiteCu2Pb3Bi8(S,Se)16
2.JB.25iNeyiteAg2Cu6Pb25Bi26S68
2.JB.25cNordströmiteCuPb3Bi7(Se4S10)
2.JB.25gNuffielditeCu1.4Pb2.4Bi2.4Sb0.2S7
2.JB.25dProuditeCuPb7.5Bi9.33(S,Se)22
2.JB.25hWeibullitePb5Bi8Se7S11
2.JB.25bFelbertaliteCu2Pb6Bi8S19
2.JB.25jRouxeliteCu2HgPb23Sb27S65.5
2.JB.25fÁngelaiteCu2AgPbBiS4
2.JB.25iCuproneyiteCu7Pb27Bi25S68
2.JB.30aGeocronitePb14(Sb,As)6S23
2.JB.30aJordanitePb14(As,Sb)6S23
2.JB.30bKirkiitePb10Bi3As3S19
2.JB.30cTsugaruitePb4As2S7
2.JB.35cPillaitePb9Sb10S23ClO0.5
2.JB.35aZinkenitePb9Sb22S42
2.JB.35bScainiitePb14Sb30S54O5
2.JB.35dPellouxite(Cu,Ag)Pb10Sb12S27O(Cl,S)0.6
2.JB.35fTubuliteAg2Pb22Sb20S53
2.JB.35eChovanitePb15-2xSb14+2xS36Ox (x ~ 0.2)
2.JB.40bAschamalmitePb6Bi2S9
2.JB.40aBursaitePb5Bi4S11 (?)
2.JB.40bEskimoiteAg7Pb10Bi15S36
2.JB.40aFizélyiteAg5Pb14Sb21S48
2.JB.40aGustaviteAg3Pb5Bi11S24
2.JB.40aLillianitePb3-2xAgxBi2+xS6
2.JB.40cOurayiteAg3Pb4Bi5S13
2.JB.40aRoshchiniteAg19Pb10Sb51S96
2.JB.40dSchirmeritePbAgBi3S6 - Pb3Ag1.5Bi3.5S9
2.JB.40aTreasuriteAg7Pb6Bi15S32
2.JB.40aUchucchacuaiteAgMnPb3Sb5S12
2.JB.40eUstarasitePb(Bi,Sb)6S10 (?)
2.JB.40aVikingiteAg5Pb8Bi13S30
2.JB.40aXilingolitePb3Bi2S6
2.JB.40bHeyrovskýitePb10AgBi5S18
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.40aAndorite IVPb18Ag15Sb47S96
2.JB.55GratonitePb9As4S15
2.JB.60MarrucciiteHg3Pb16Sb18S46
2.JB.65VurroitePb20Sn2(Bi,As)22S54Cl6
5.7.1SeligmannitePbCuAsS3
5.7.2BournonitePbCuSbS3
5.7.3MeneghinitePb13CuSb7S24
5.7.4GladitePbCuBi5S9
5.7.5LindströmitePb3Cu3Bi7S15
5.7.6KrupkaitePbCuBi3S6
5.7.7HammaritePb2Cu2Bi4S9
5.7.8FriedrichitePb5Cu5Bi7S18
5.7.9AikinitePbCuBiS3
5.7.10NuffielditeCu1.4Pb2.4Bi2.4Sb0.2S7
5.7.11JaskólskiitePb2+xCux(Sb,Bi)2-xS6 (x = 0.2)
5.7.12TintinaitePb22Cu4(Sb,Bi)30S69
5.7.13KobellitePb22Cu4(Bi,Sb)30S69
5.7.14ProuditeCuPb7.5Bi9.33(S,Se)22
5.7.15NordströmiteCuPb3Bi7(Se4S10)
5.7.16WatkinsoniteCu2PbBi4(Se,S,Te)8
5.7.17PekoitePbCuBi11(S,Se)18
5.7.18PetroviciteCu3HgPbBiSe5
5.7.19Eclarite(Cu,Fe)Pb9Bi12S28
5.7.20MarriteAgPbAsS3
5.7.21Baumhauerite-2aPb11Ag(As,Sb)18S36
5.7.22AndoritePbAgSb3S6
5.7.24RoshchiniteAg19Pb10Sb51S96
5.7.25OurayiteAg3Pb4Bi5S13
5.7.26EskimoiteAg7Pb10Bi15S36
5.7.27FizélyiteAg5Pb14Sb21S48
5.7.28OwyheeiteAg3+xPb10-2xSb11+xS28, -0.13 < x > +0.20
5.7.29FreieslebeniteAgPbSbS3
5.7.30DiaphoriteAg3Pb2Sb3S8
5.7.31SterryiteAg2Pb10(Sb,As)12S29
5.7.32VikingiteAg5Pb8Bi13S30
5.7.33ZoubekiteAgPb4Sb4S10
5.7.34SchirmeritePbAgBi3S6 - Pb3Ag1.5Bi3.5S9
5.7.36GustaviteAg3Pb5Bi11S24
5.7.37KitaibeliteAg10PbBi30S51
5.7.38TreasuriteAg7Pb6Bi15S32
5.7.39Benjaminite(Ag,Cu)3(Bi,Pb)7S12
5.7.40Lengenbachite Ag4Cu2Pb18As12S39 ·
5.7.41BerryiteCu3Ag2Pb3Bi7S16
5.7.42NeyiteAg2Cu6Pb25Bi26S68
5.7.43Larosite(Cu,Ag)21(Pb,Bi)2S13
5.7.44CupropavoniteAgCu2PbBi5S10
5.7.45PadĕraiteCu5.9Ag1.3Pb1.6Bi11.2S22
5.7.46RayitePb8(Ag,Tl)2Sb8S21
5.7.47RathitePb8Pb4-x(Tl2As2)x(Ag2As2)As16S40
5.7.48HatchiteAgTlPbAs2S5

Other Names for Ramdohrite

Name in Other Languages:
German:Ramdohrit
Simplified Chinese:辉锑银铅矿
Spanish:Ramdohrita

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.

References for Ramdohrite

Reference List:
Ahlfeld (1930), Centralblatt für Mineralogie: 365.

American Mineralogist (1931): 16: 132.

Palache, Charles, Harry Berman & Clifford Frondel (1944), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Volume I: Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, Inc., New York. 7th edition, revised and enlarged: 450-451.

American Mineralogist (1954): 39: 161-171.

American Mineralogist (1984): 69: 412.

American Mineralogist (1985): 70: 219-220.

Moelo, Y et al. (1989), Sulfures complexes plombo-argentiferes: mineralogie et cristallochemie de la serie andorite-fizelyite, (Pb,Mn,Fe,Cd,Sn)3-2x(Ag,Cu)2(Sb,Bi,As)2+x(S,Se)6. Documents du BRGM, 167, BRGM ed., Orleans, 107p.

American Mineralogist (1991): 76: 2020.

Neues Jahrbuch für Mineralogie, Abhandlungen: 147: 58-79.

Nespolo, M., Ozawa, T., Kawasaki, Y., Sugiyama, K. (2012): Structural relations and pseudosymmetries in the andorite homologous series. Journal of Mineralogical and Petrological Sciences 107, 226-243.

Makovicky, E., Mumme, W.G., Gable, R.W. (2013): The crystal structure of ramdohrite, Pb5.9Fe0.1Mn0.1In0.1Cd0.2Ag2.8Sb10.8S24: a new refinement. American Mineralogist, 98, 773-779.

Internet Links for Ramdohrite

Localities for Ramdohrite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
Argentina
 
  • Jujuy
    • Rinconada Department
Brodtkorb, "Las Especies Minerales de la Republica Argentina" (2002); DE BRODTKORB, Milka K. Precious metaltellurides and other Te-bearing minerals in different paragenesis of Argentina: A review. Rev. Asoc. Geol. Argent. [online]. 2009, vol.64, n.3, pp. 365-372.
Amer.Min.(2000) 85, 1066-1075
Bolivia
 
  • Oruro Department
    • Cercado Province
      • Oruro City
Keutsch, F. & Brodtkorb, M. (2007) Metalliferous parageneses of the San Jose mine. Journal of South American Earth Sciences, 26, 485-491.; Keutsch, F., & Brodtkorb, M. D. (2008). Metalliferous paragenesis of the San José mine, Oruro, Bolivia. Journal of South American Earth Sciences, 25(4), 485-491.
  • Potosí Department
    • Antonio Quijarro Province
      • Agua de Castilla
        • Porco
Kempff, O., Paar, W.H., Tawackoli, S.: "Minerales de Bolivia", 115pp (La Paz, 2009)
    • Sud Chichas Province
      • Atocha-Quechisla District
        • Chocaya-Animas (Animas-Chocaya)
Knut Eldjarn collection
Mineral. Rec. 32: 461; Makovicky, E., Mumme, W.G., Gable, R.W. (2013): The crystal structure of ramdohrite, Pb5.9Fe0.1Mn0.1In0.1Cd0.2Ag2.8Sb10.8S24: a new refinement. American Mineralogist, 98, 773-779.
collections of Alfredo Petrov & Jaroslav Hyrsl.
Federico Ahlfeld y Alejandro Schneider-Scherbina (1964) Los Yacimientos Minerales y de Hidrocarburos de Bolivia. (Ministerio de Minas y Petroleo, La Paz)
[MinRec 32:480
Bulgaria
 
  • Kardzhali Oblast (Kurdzhali; Kărdžali; Kurdjali)
    • Momchilgrad Obshtina
Strashimirov, S., Dobrev, S., Stemenov, S., & Dragiev, H. (2005). Silver-bearing minerals from the ore body “North” in Sedefche epithermal Au-Ag deposit (eastern Rhodopes). Annual of the University of Mining and Geology “St. Ivan Rilski, 48, 143-148.
China
 
  • Guangxi Zhuang Autonomous Region
    • Hechi Prefecture
      • Nandan Co.
        • Dachang Sn-polymetallic ore field
Mineral Deposits 4(1), 74
    • Nanning Prefecture
      • Long'an Co.
Anthony, J.W. et al.: Handbook of Mineralogy
  • Hunan Province
    • Chenzhou Prefecture
      • Yizhang Co.
        • Yaogangxian W-Sn ore field
Bosheng Zhou, Guohua Zhang, Shuqing Gong, and Yousheng Zeng (2002): Geophysical & Geochemical Exploration 26(6), 436-438
  • Jiangxi Province
    • Shangrao Prefecture
      • Wannian Co.
Dong Zhensheng et al. (1996). In: Tu Guangzhi, Ed.: Low Temperature Geochemistry, Science Press (Beijing), 32-42
  • Sichuan Province
    • Garzê Autonomous Prefecture (Ganzi Autonomous Prefecture)
      • Baiyu Co.
Xiaoming Qu, Qiling Zhang, Zengqian Hou, Yuanping Xu, and Jinzhong Li (2001): Mineral Deposits 20(3), 199-207
      • Garzê Co. (Ganzi Co.)
Gui He and Xipeng Hu (2009): Acta Geologica Sichuan 30(4), 409-411
  • Yunnan Province
    • Honghe Autonomous Prefecture
      • Mengzi Co.
Xinpei Jiang (1994): Acta Petrologica et Mineralogica 13(5), 278-284; Xueming Chen, Zong Lin, and Fuchang Xie (1998): Scientia Geologica Sinica 33(1), 115-124
Finland
 
  • Southwestern Finland Region
    • Salo
      • Kisko
Geological Survey of Finland Metsämonttu - ZINC Database
France
 
  • Alsace
    • Bas-Rhin
      • Villé Valley
Wittern, Journée (1997): "Mineralien finden in den Vogesen", von Loga (Cologne), pp. 36-37.
  • Auvergne
    • Haute-Loire
      • Langeac
        • Marsanges
Y. Moëlo, E. Makovicky and S. Karup-Moller : "Sulfures complexes plombo-argentifères : minéralogie et cristallochimie de la série andorite-fizelyite", Documents du BRGM N° 167, 1989.
  • Pays de Loire
    • Vendée
      • Les Herbiers
Y. Moëlo, E. Makovicky and S. Karup-Moller : "Sulfures complexes plombo-argentifères : minéralogie et cristallochimie de la série andorite-fizelyite", Documents du BRGM N° 167, 1989.
Greece
 
  • Attikí Prefecture (Attica; Attika)
    • Lavrion District (Laurion; Laurium)
      • Lavrion District Mines
Voudouris, P., Melfos, V, Spry, P.G., Bonsall, T.A., Tarkian, M. & Solomon, Ch. (2008): Carbonate-replacement Pb-Zn-Ag+/-Au mineralization in the Kamariza area, Lavrion, Greece: Mineralogy and thermochemical conditions of formation. Mineralogy & Petrology 94, 85-106. [p. 90, 93]
India
 
  • Rajasthan (Rajputana)
    • Ajmer Division
      • Bhilwara District
Holler, W. & Gandhi, S.M. (1995) Silver-bearing sulfosalts from the metamorphosed Rampura Agucha Zn-Pb-(Ag) deposit, Rajasthan, India. Canadian Mineralogist, 33, 1047-1057.
Japan
 
  • Hokkaido
    • Shiribeshi Province
      • Shakotan peninsula
        • Furubira
AMNH specimen
Mexico
 
  • Mexico
    • Mun. de Temascaltepec
      • Temascaltepec de González (Temascaltepec)
Camprubi, A., Canals, A., Cardellach, E., Prol-Ledesma, R.M., Rivera, R., 2001, The La Guitarra Ag-Au low-sulfidation epithermal deposit, Temascaltepec district, Mexico: vein structure, mineralogy, and sulfide-sulfosalt chemistry. Society of Economic Geologists Special Publication, v. 8, p. 133-158.
Norway
 
  • Nordland
    • Rana
Nigel J. Cook, pers com. to Knut Edvard Larsen 25.01.2001
Romania
 
  • Maramureș Co.
    • Baia Mare (Nagybánya)
      • Chiuzbaia (Kisbánya)
Papp, Gábor, Alan J. Criddle, Chris J. Stanley, László Kriston and Géza Nagy (2007): Parajamesonite revisited: background of the discreditation of an enigmatic mineral species. Swiss Journal of Geosciences, 100, 495-502.
Russia
 
  • Eastern-Siberian Region
    • Sakha Republic (Saha Republic; Yakutia)
      • Indigirka River Basin
        • Ust'-Nera
American Mineralogist, Volume 79, pages 763-767, 1994
      • Verkhoyansk Fold Belt
        • Verkhoyansk Silver Province
Seltmann, R., Soloviev, S., Shatov, V., Pirajno, F., Naumov, E., & Cherkasov, S. (2010). Metallogeny of Siberia: tectonic, geologic and metallogenic settings of selected significant deposits*. Australian Journal of Earth Sciences, 57(6), 655-706
Slovakia
 
  • Banská Bystrica Region
    • Revúca Co.
      • Chyžné
Bálintová T., Števko M., Ozdín D., 2006: Sulphosalts of lillianite homologous series from Chyžné occurrence (Slovakia). Miner. Polonica-Special Papers, vol. 28. p.19- 21
  • Prešov Region
    • Prešov Co.
Duda et. all.,1981:Minerály severnej časti Slanských vrchov. Min.Slovca,Monografia 2,Bratislava, 98 p
USA
 
  • California
    • Inyo Co.
      • Bishop District (Tungsten Hills District)
        • West Bishop
Bateman, Paul C. (1965), Geology and tungsten mineralization of the Bishop district, California: USGS PP 470: 130; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 139, 333.
  • Michigan
    • Menominee Co.
Quigley, Tom, and Mahin, Bob, 2008, Back Forty Geology and Mineralization: Proceedings of the Institute on Lake Superior Geology, v. 54, Part 2 - Field Trip Guidebook, 66-85.
  • Washington
    • King Co.
      • North Bend
www.cannonmicroprobe.com/Mineral_Specimens.htm
Mineral and/or Locality  
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