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Richelsdorfite

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Formula:
Ca
 
2
Cu
 
5
Sb(AsO
 
4
)
 
4
(OH)
 
6
Cl · 6H
 
2
O
System:MonoclinicColour:Turquoise-blue
Hardness:2
Name:Named after its discovery locality, Wilhelm Mine (Wechselschacht), Bauhaus, Richelsdorf District, North Hesse, Hesse, Germany.


Several richelsdorfite-like, Sb- and/or Cl-free "varieties" also exist (e.g., Walenta, 2000). Some of them probably are new species or possibly polytypes.
A "carbonate-richelsdorfite" has been characterised by Drescher and Susse (1997) and was tentatively identified by Gröbner (2000).

Structurally related to the Lavendulan Group.

Classification of Richelsdorfite

IMA status:Approved 1982
Explanation of status:Several "richelsdorfite-like" minerals exist which show similar, but different chemical compositions and X-ray powder patterns.
Strunz 8th edition ID:7/D.54-10
Nickel-Strunz 10th (pending) edition ID:8.DK.

8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
K : With large and medium-sized cations, (OH, etc.):RO4 > 1:1 and < 2:1
Dana 8th edition ID:42.7.15.1

42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
7 : (AB)2(XO4)Zq·xH2O
Hey's CIM Ref.:22.2.6

22 : Phosphates, Arsenates or Vanadates with other Anions
2 : Phosphates, arsenates or vanadates with chloride
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Type Occurrence of Richelsdorfite

Type Locality:Wilhelm Mine (Wechselschacht), Bauhaus, Richelsdorf District, Hesse, Germany
Year of Discovery:1982

Physical Properties of Richelsdorfite

Lustre:Vitreous
Colour:Turquoise-blue
Hardness (Mohs):2

Crystallography of Richelsdorfite

Crystal System:Monoclinic
Class (H-M):2/m - Prismatic
Cell Parameters:a = 14.08Å, b = 14.21Å, c = 13.49Å
β = 101.06°
Ratio:a:b:c = 0.991 : 1 : 0.949
Unit Cell Volume:V 2,648.91 ų (Calculated from Unit Cell)
Z:4
Comment:Space group C2/m

Optical Data of Richelsdorfite

Type:Biaxial (-)
RI values: nα = 1.640 nβ = 1.692 nγ = 1.694
2V:Measured: 10° to 15°, Calculated: 20°
Maximum Birefringence:δ = 0.054

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:High
Dispersion:relatively weak

Chemical Properties of Richelsdorfite

Formula:
Ca
 
2
Cu
 
5
Sb(AsO
 
4
)
 
4
(OH)
 
6
Cl · 6H
 
2
O
Simplified for copy/paste:Ca2Cu5Sb(AsO4)4(OH)6Cl·6H2O
Essential elements:As, Ca, Cl, Cu, H, O, Sb
All elements listed in formula:As, Ca, Cl, Cu, H, O, Sb

Relationship of Richelsdorfite to other Species

Structurally related to group(s):
Lavendulan Group
Related Minerals - Nickel-Strunz Grouping):

- +
8.DK.10Bariopharmacosiderite
Ba
 
0.5
Fe
3+
4
(AsO
 
4
)
 
3
(OH)
 
4
· 5H
 
2
O
8.DK.10Pharmacosiderite
KFe
3+
4
(AsO
 
4
)
 
3
(OH)
 
4
· 6-7H
 
2
O
8.DK.10Natropharmacosiderite
(Na,K)Fe
3+
4
(AsO
 
4
)
 
3
(OH)
 
4
· 6-7H
 
2
O
8.DK.10Hydroniumpharmacosiderite
(H
 
3
O)Fe
 
4
(AsO
 
4
)
 
3
(OH)
 
4
· 4H
 
2
O
8.DK.12Pharmacoalumite
KAl
 
4
(AsO
 
4
)
 
3
(OH)
 
4
· 6.5H
 
2
O
8.DK.12Natropharmacoalumite
NaAl
 
4
(AsO
 
4
)
 
3
(OH)
 
4
· 4H
 
2
O
8.DK.12Bariopharmacoalumite
Ba
 
0.5
Al
 
4
(AsO
 
4
)
 
3
(OH)
 
4
· 4H
 
2
O
8.DK.15Burangaite
NaFe
2+
 
Al
 
5
(PO
 
4
)
 
4
(OH)
 
6
· 2H
 
2
O
8.DK.15Dufrénite
Ca
 
0.5
Fe
2+
 
Fe
3+
5
(PO
 
4
)
 
4
(OH)
 
6
· 2H
 
2
O
8.DK.15Natrodufrénite
NaFe
2+
 
Fe
3+
5
(PO
 
4
)
 
4
(OH)
 
6
· 2H
 
2
O
8.DK.15Matioliite
NaMgAl
 
5
(PO
 
4
)
 
4
(OH)
 
6
· 2H
 
2
O
8.DK.15Gayite
NaMn
2+
 
Fe
3+
5
(PO
 
4
)
 
4
(OH)
 
6
· 2H
 
2
O
8.DK.20Kidwellite
NaFe
3+
9
(PO
 
4
)
 
6
(OH)
 
11
· 3H
 
2
O
8.DK.25Bleasdaleite
(Ca,Fe
3+
 
)
 
2
Cu
 
5
(Bi,Cu)(PO
 
4
)
 
4
(H
 
2
O,OH,Cl)
 
13
8.DK.30Matulaite
(Fe
3+
 
,Al)Al
 
7
(PO
 
4
)
 
4
(PO
 
3
OH)
 
2
(OH)
 
8
(H
 
2
O)
 
8
· 8H
 
2
O
8.DK.35Krasnovite
Ba(Al,Mg)(PO
 
4
,CO
 
3
)(OH)
 
2
· H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
22.2.1Sampleite
NaCaCu
 
5
(PO
 
4
)
 
4
Cl · 5H
 
2
O
22.2.2Lavendulan
NaCaCu
 
5
(AsO
 
4
)
 
4
Cl · 5H
 
2
O
22.2.3Chlorapatite
Ca
 
5
(PO
 
4
)
 
3
Cl
22.2.4Turneaureite
Ca
 
5
(AsO
 
4
)
 
3
Cl
22.2.5Shubnikovite
Ca
 
2
Cu
 
8
(AsO
 
4
)
 
6
(OH)Cl · 7H
 
2
O
22.2.7Alforsite
Ba
 
5
(PO
 
4
)
 
3
Cl
22.2.8Morelandite
Ca
 
2
Ba
 
3
(AsO
 
4
)
 
3
Cl
22.2.9Pyromorphite
Pb
 
5
(PO
 
4
)
 
3
Cl
22.2.10Mimetite
Pb
 
5
(AsO
 
4
)
 
3
Cl
22.2.11Mimetite-M
Pb
 
5
(AsO
 
4
)
 
3
Cl
22.2.12Sahlinite
Pb
 
14
(AsO
 
4
)
 
2
O
 
9
Cl
 
4
22.2.13Georgiadèsite
Pb
 
4
(AsO
 
3
)Cl
 
4
(OH)
22.2.14Vanadinite
Pb
 
5
(VO
 
4
)
 
3
Cl
22.2.15Kombatite
Pb
 
14
(VO
 
4
)
 
2
O
 
9
Cl
 
4
22.2.16Leningradite
PbCu
 
3
(VO
 
4
)
 
2
Cl
22.2.17Hedyphane
Pb
 
3
Ca
 
2
(AsO
 
4
)
 
3
Cl
22.2.18Nealite
Pb
 
4
Fe
2+
 
(As
3+
 
O
 
3
)
 
2
Cl
 
4
· 2H
 
2
O

Other Names for Richelsdorfite

Synonyms:
IMA1982-019
Other Languages:
German:Richelsdorfit
Russian:Рихельсдорфит
Spanish:Richelsdorfita

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Richelsdorfite

Reference List:

- +
Süsse, P. & Schnorrer-Köhler, G. (1983): Richelsdorfit, Ca2Cu5Sb[Cl(OH)6(AsO4)4]•6H2O, ein neues Mineral. - Neues Jahrbuch für Mineralogie, Monatshefte (1983): 145-150.

American Mineralogist (1984): 69: 211.

Süsse, P. & Tillmann, B. (1987): The crystal structure of the new mineral richelsdorfite, Ca2Cu5Sb(Cl/(OH)6/(AsO4)4)•6H2O. Zeitschrift für Kristallographie 179: 323-334.

Sarp, H., Dominik, B. and Chiappero, P.-J. (1994): Nouveau gisement (Triembach-Le Val, Vosges, France): nouvelles propriétés optiques et diagramme de poudre de la richelsdorfite, Ca2Cu5Sb[Cl(OH)6(AsO4)4]•6H2O. Schweizerische mineralogische und petrographische Mitteilungen 74: 273-277. (in French).

Drescher, I. and Susse, P. (1997): Crystal structural investigation of a carbonate richelsdorfite. European Journal of Mineralogy 9, Beih. No. 1: 81.

Walenta, K. (2000): Richelsdorfitähnliche Mineralien aus dem Schwarzwald. Der Erzgräber 14, 1-9. (in German)

Gröbner, J. (2000): Neue Mineralienfunde aus Österreich (2). Mineralien-Welt, 11 (5), 49-51.

Internet Links for Richelsdorfite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Richelsdorfite details from Handbook of Mineralogy (PDF)
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  • Localities for Richelsdorfite

    The 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. ? 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.
    Austria
     
    • Salzburg
      • Saalfelden
        • Leogang
          • Hütten
            • Schwarzleograben
              • Schwarzleo District
    A.Lechner (2014)
    • Styria
      • Knittelfeld
        • Flatschach
          • Cu deposit (Schönberg)
    Gröbner, J. (2000): Neue Mineralienfunde aus Österreich (2). Mineralien-Welt, 11 (5), 49-51.
    • Tyrol
      • North Tyrol
        • Inn valley
          • Brixlegg - Schwaz area
            • Brixlegg - Rattenberg
              • Geyer - Silberberg District
                • Silberberg
    Schnorrer, G. and Poeverlein, R. (2002) Schwaz-Brixlegg-Fundstellen: 2. Die Minerale des Stockerstollens bei Brixlegg in Tirol. Aufschluss, 53, 209-228.
                  • West slope ("Am Geyer")
    R. Poeverlein and J. Gröbner (2007): "Der Bergbau Geyer bei Rattenberg in Tirol und seine Mineralien", Lapis 32(2), 34-38.
                • Silberberggraben
    Putz, H., Lechner, A. & Poeverlein, R. (2012): Erythrin und Clarait vom Pichlerstollen am Silberberg bei Rattenberg, Nordtirol. Lapis, 37 (1), 47-52; 62 (in German).
    Schnorrer, G. & Poeverlein, R. (2005): Schwaz-Brixlegger-Fundstellen: 3. Die Minerale vom Bergbau Maukenötz bei Brixlegg, Tirol. Der Aufschluss, 56, 223-234.
              • Reith
                • Unterstein
    Putz, H. & Poeverlein, R. (2010): Die Mineralien des Silberbergstollens bei Unterstein, Reith bei Brixlegg, Tirol. Lapis 35 (5), 37-41; 58.
              • St Gertraudi
                • Großkogel (Reither Kogel)
    A.Lechner, Siegsdorf, D
    • Vorarlberg
      • Montafon
        • Vandans
          • Rells valley
    Niedermayr, G. et al. (2003): Neue Mineralfunde aus Österreich LII. Carinthia II, 193./113., 195-216; Natural History Museum Vienna collection
    France
     
    • Alsace
      • Bas-Rhin
        • Villé Valley
    Sarp, H., Dominik, B. and Chiappero, P.-J. (1994): Nouveau gisement (Triembach-Le Val, Vosges, France): nouvelles propriétés optiques et diagramme de poudre de la richelsdorfite, Ca2Cu5Sb[Cl(OH)6(AsO4)4]*6H2O. Schweizerische mineralogische und petrographische Mitteilungen: 74: 273-277. (in French); Wittern, Journée: "Mineralien finden in den Vogesen", von Loga (Cologne), 1997
    • Languedoc-Roussillon
      • Aude
        • Carcassonne
          • Mas-Cabardès
            • Salsigne
    Le Règne Minéral, Hors série (3), 36-54
    • Midi-Pyrénées
      • Tarn-et-Garonne
        • Laguépie
    Jean-Marie Laurent collection + XRD analysis by Nicolas Meisser of specimen from Jean-Claude Dol collection
    Germany
     
    • Baden-Württemberg
      • Black Forest
        • Emmendingen
          • Freiamt Pb-Cu mining District
            • Eberbächle
    K. Walenta: "Die Mineralien des Schwarzwaldes", Weise (Munich), 1992
        • Schenkenzell
          • Wittichen
            • Burgfelsen
    No reference listed
            • Heubach Valley
    No reference listed
    K. Walenta: "Die Mineralien des Schwarzwaldes", Weise (Munich), 1992
        • Wolfach
          • Oberwolfach
            • Rankach valley
    Walenta, K. (1992): Die Mineralien des Schwarzwaldes. Chr. Weise Verlag, München, 336 pp. (in German)
    • Bavaria
      • Franconia
        • Spessart
          • Schöllkrippen
            • Huckelheim
    - Hock, J. & Weis, T. (1992): Ehemalige Grube 'Segen Gottes' bei Huckelheim eine Fundstelle im Zechstein des Spessarts. Der Aufschluss, 43, 55-63. (in German)
    • Hesse
      • Odenwald
        • Lautertal (Odenwald)
          • Reichenbach
            • Hohenstein
    Belendorff, K & Petitjean, K. (1987): Reichenbach im Odenwald. Die Mineralien von Fundpunkt 16.1. bei Reichenbach. LAPIS 12 (10), 23-32 + 58
    Schnorrer-Köhler, G. (1991): Mineralogische Notizen V. Aufschluss 42, 155-171.
        • Bauhaus
    Aufschluss 73(7+8), 319-321
    American Mineralogist (1984): 69: 211.
        • Süss
          • Richelsdorf Smelter
    S. Weiß: "Mineralfundstellen, Deutschland West", Weise (Munich), 1992
    • Lower Saxony
      • Harz
        • Clausthal-Zellerfeld
          • Bockswies veins
            • Oberschulenberg
    Lapis, 11 (1), 9-18+42
        • St Andreasberg District
          • St Andreasberg
    No reference listed
    Lapis 8(9), 16 (1983)
    • North Rhine-Westphalia
      • Eifel
        • Düren
          • Untermaubach
    Weiss: "Mineralfundstellen, Deutschland West", 1990
      • Sauerland
        • Meschede
    Wittern: "Mineralfundorte in Deutschland", 2001
      • Siegerland
        • Müsen
    Der Aufschluss 2000(2), 71-123
        • Niederschelden
    Lapis, 12 (12), 23-31+42.
    • Rhineland-Palatinate
      • Lahn valley
    Wittern: "Mineralfundorte in Deutschland", 2001
          • Frücht
    Der Aufschluss Vol.55, March/April 2004
      • Siegerland
        • Wissen
          • Schönstein (Steckenstein)
    Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
    • Saxony
      • Erzgebirge
        • Ehrenfriedersdorf
    Wittern: "Mineralfundorte in Deutschland", 2001
    Lapis 30(7/8):78-80 (2005)
    • Thuringia
      • Harz
        • Nordhausen
          • Ilfeld
    J. Gröbner & J. Wesiger (2008): Die Mineralien des Kupferschieferbergbaus an südlichen Harzrand bei Ilfeld in Thüringen. Mineralien-Welt 19 (2), 18-28.
        • Stempeda
    J. Gröbner & J. Wesiger (2008): Die Mineralien des Kupferschieferbergbaus an südlichen Harzrand bei Ilfeld in Thüringen. Mineralien-Welt 19 (2), 18-28.
    Greece
     
    • Attikí Prefecture (Attica; Attika)
      • Lavrion District (Laurion; Laurium)
        • Lavrion District Mines
          • Agios Konstantinos [St Constantine] (Kamariza)
            • Kamariza Mines (Kamareza Mines)
    Kolitsch, U., Rieck, B., Brandstätter, F., Schreiber, F., Fabritz, K. H., Blaß, G. & Gröbner, J. (2014): Neufunde aus dem altem Bergbau und den Schlacken von Lavrion (I). Mineralien-Welt 25 (1), 60-75 (in German).
          • Plaka
            • Plaka Mines
    No reference listed
    Hungary
     
    • Heves Co.
      • Mátra Mtns
        • Parádfürdő
    GEODA, 1999
    Italy
     
    • Veneto
      • Vicenza Province
        • Valli del Pasubio
    Boscardin M., Daleffe A., Rocchetti I., Zordan A. “I minerali nel Vicentino”, Museo “G. Zannato”, Montecchio Maggiore (Vicenza), 2011.
    Japan
     
    • Hokkaido
      • Sapporo
    Matsubara et al (2003) Koubutsu-Gakkai Kou'en-Youshi, 46.
    Spain
     
    • Andalusia
      • Córdoba
        • Villanueva de Córdoba
    Schnorrer, G. (2000): Die Minerale der ehemaligen Grube Espuela de San Miguel bei Villanueva de Cordoba, Prov. Cordoba in Spanien. Der Aufschluss, 51, 211-222. (in German)
    • Valencian Community
      • Castellón
    Mineralogía de la concesión San Rafael, Villahermosa del Río, Castellón, España
          • San Rafael claim
    - Cócera, H., Menor-Salván, C. and Muñoz-Alvarado, R. (2010): Mineralogía de la concesión San Rafael, Villahermosa del Río, Castellón, España. Acopios, 1, 1-51. [http://mti-acopios.blogspot.com/ ; http://issuu.com/malacate/docs/acopios-1-1?mode=a_p]
    Switzerland
     
    • Wallis (Valais)
      • Sion (Sitten)
        • Granges (Lens)
    Ansermet, S., Meisser, N. & Cuchet, S. (2011): Ein Hauch Carrara im Wallis - zur Mineralogie des Steinbruchs La Plâtrière in Lens. Schweizer Strahler 2/2011, 2-17 (in German/French).
    USA
     
    • Nevada
      • Washoe Co.
        • Pyramid District
    NBMG Spec. Pub. 31 Minerals of Nevada
    • Utah
      • Juab Co.
        • East Tintic Mts
          • Tintic District
            • Mammoth
    XRD analyzed by Tony Kamph.
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