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Arsenbrackebuschite

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Clara Mine, Rankach valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany
© Gerhard Niceus

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Formula:
Pb
 
2
Fe
3+
 
(AsO
 
4
)
 
2
(OH)
May contain minor Zn replacing Fe; charge-balance by H2O substituting for OH.
System:MonoclinicLustre:Adamantine
Hardness:4½
Member of:Brackebuschite Group
Name:The name is in allusion to this species being an arsenate within the brackebuschite group.


May be confused with (rarer) mawbyite, also a Pb-Fe-arsenate.

Classification of Arsenbrackebuschite

IMA status:Approved
Strunz 8th edition ID:7/B.24-40
Nickel-Strunz 10th (pending) edition ID:8.BG.05

8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
G : With medium-sized and large cations, (OH, etc.):RO4 = 0.5:1
Dana 8th edition ID:40.2.8.2

40 : HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
2 : AB2(XO4)2·xH2O
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Type Occurrence of Arsenbrackebuschite

Co-type Localities:Clara Mine, Rankach valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany
Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia
Year of Discovery:1978

Physical Properties of Arsenbrackebuschite

Lustre:Adamantine
Hardness (Mohs):4½

Crystallography of Arsenbrackebuschite

Crystal System:Monoclinic
Class (H-M):2/m - Prismatic
Space Group:P21/m {P1 1 21/m} {P21/m} {P1 21/m 1}
Cell Parameters:a = 7.76Å, b = 6.04Å, c = 9.02Å
β = 112.5°
Ratio:a:b:c = 1.285 : 1 : 1.493
Unit Cell Volume:V 390.59 ų (Calculated from Unit Cell)

Optical Data of Arsenbrackebuschite

Type:Biaxial (-)
Dispersion:relatively weak

Chemical Properties of Arsenbrackebuschite

Formula:
Pb
 
2
Fe
3+
 
(AsO
 
4
)
 
2
(OH)


May contain minor Zn replacing Fe; charge-balance by H2O substituting for OH.
Essential elements:As, Fe, H, O, Pb
All elements listed in formula:As, Fe, H, O, Pb

Relationship of Arsenbrackebuschite to other Species

Member of:Brackebuschite Group
Other Members of Group:

- +
Arsentsumebite
Pb
 
2
Cu(AsO
 
4
)(SO
 
4
)(OH)
Bearthite
Ca
 
2
Al(PO
 
4
)
 
2
(OH)
Brackebuschite
Pb
 
2
(Mn
3+
 
,Fe
3+
 
)(VO
 
4
)
 
2
(OH)
Bushmakinite
Pb
 
2
Al(PO
 
4
)(VO
 
4
)(OH)
Calderónite
Pb
 
2
Fe
3+
 
(VO
 
4
)
 
2
(OH)
Feinglosite
Pb
 
2
(Zn,Fe
2+
 
)(AsO
 
4
)(SO
 
4
)(OH)
Gamagarite
Ba
 
2
(Fe
3+
 
,Mn
3+
 
)(VO
 
4
)
 
2
(OH)
Goedkenite
(Sr,Ca)
 
2
Al(PO
 
4
)
 
2
(OH)
Tokyoite
Ba
 
2
(Mn
3+
 
,Fe
3+
 
)(VO
 
4
)
 
2
(OH)
Tsumebite
Pb
 
2
Cu(PO
 
4
)(SO
 
4
)(OH)
Related Minerals - Nickel-Strunz Grouping):

- +
8.BG.05Arsentsumebite
Pb
 
2
Cu(AsO
 
4
)(SO
 
4
)(OH)
8.BG.05Bearthite
Ca
 
2
Al(PO
 
4
)
 
2
(OH)
8.BG.05Brackebuschite
Pb
 
2
(Mn
3+
 
,Fe
3+
 
)(VO
 
4
)
 
2
(OH)
8.BG.05Gamagarite
Ba
 
2
(Fe
3+
 
,Mn
3+
 
)(VO
 
4
)
 
2
(OH)
8.BG.05Goedkenite
(Sr,Ca)
 
2
Al(PO
 
4
)
 
2
(OH)
8.BG.05UM1994-19-PO:CuHMoPb
Pb
 
2
Cu(PO
 
4
)(MoO
 
4
,AsO
 
4
,CrO
 
4
,GaO
 
4
)(OH)
8.BG.05Tsumebite
Pb
 
2
Cu(PO
 
4
)(SO
 
4
)(OH)
8.BG.05Feinglosite
Pb
 
2
(Zn,Fe
2+
 
)(AsO
 
4
)(SO
 
4
)(OH)
8.BG.05Bushmakinite
Pb
 
2
Al(PO
 
4
)(VO
 
4
)(OH)
8.BG.05Tokyoite
Ba
 
2
(Mn
3+
 
,Fe
3+
 
)(VO
 
4
)
 
2
(OH)
8.BG.05Calderónite
Pb
 
2
Fe
3+
 
(VO
 
4
)
 
2
(OH)
8.BG.10Mélonjosephite
CaFe
2+
 
Fe
3+
 
(PO
 
4
)
 
2
(OH)
8.BG.15Tancoite
LiNa
 
2
Al(PO
 
4
)(HPO
 
4
)(OH)

Other Names for Arsenbrackebuschite

Synonyms:
ArsenbrackenbuschiteIMA1977-014
Other Languages:
German:Arsenbrackebuschit
Arsenbrackenbuschit
Russian:Арсенбракебушит
Spanish:Arsenbrackebuschita
Arsenbrackenbuschita

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 Arsenbrackebuschite

Reference List:

- +
American Mineralogist: 63: 1282.

Abraham, K., Kautz, K., Tillmanns, E. and Walenta, K. (1978): Arsenbrackebuschite, Pb2(Fe,Zn)(OH,H2O)[AsO4]2, a new arsenate mineral. Neues Jahrb. Mineral., Monatsh. 1978, 193-196.

Tschermaks Mineralogische und Petrographische Mitteilungen: 25: 153-163.

Internet Links for Arsenbrackebuschite

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

    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.
    Hide Locality List
    (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
     
    • Styria
      • Fischbacher Alpen Mts
        • Krieglach
          • Teschengraben
    		Tomazic, P. (1999): Der Blei-Zink Bergbau Freßnitzkogel - Stanglalm, Mürztal, Steiermark, Österreich. Annalen, Journal of science and art, 1, 57-62
    • Tyrol
      • North Tyrol
        • Inn valley
          • Brixlegg - Schwaz area
            • Brixlegg - Rattenberg
    		Poeverlein, Schnorrer
              • Geyer - Silberberg District
                • Silberberg Mt.
    		Schnorrer, G. and Poeverlein, R. (2002) Schwaz-Brixlegg-Fundstellen: 2. Die Minerale des Stockerstollens bei Brixlegg in Tirol. Aufschluss, 53, 209-228.
    France
     
    • Auvergne
      • Allier
        • Ébreuil
          • Échassières
    		Kolitsch, U., Gröbner, J. & Brandstätter, F. (2009): Neufunde von Les Montmins, Allier, Frankreich. Lapis 34 (11), 24-32; 54 (in German).
    • Rhône-Alpes
      • Rhône
        • Beaujeu
          • Les Ardillats
    		Favreau G., Legris J-R., Dardillac M. (1996), La Verrière (Rhône): Histoire et Minéralogie, Le Cahier des Micromonteurs, n°3, pp:3-28
    Germany
     
    • Baden-Württemberg
      • Black Forest
        • Lahr
          • Reichenbach
            • Schuttertal
    		Lapis 21(12), 42-43 (1996)
        • Wieden
    		Lapis 23(12), 46 (1998)
        • Wolfach
          • Oberwolfach
            • Rankach valley
    		Fortschr.Mineral.(1976) 54, Beiheft 1, p.38; WALENTA, K. (1999): Neue Mineralfunde von der Grube Clara. 8. Folge, 2. Teil. Lapis 24 (12), 40-44; U. Kolitsch, J. Gröbner, G. Blaß and H.-W. Graf (2007): Neufunde aus der Grube Clara im mittleren Schwarzwald (III): Cerianit-(Ce), Dravit, Florencit-(La), Gilmarit, Olenit und Scotlandit. Lapis 32, 19-23, 70.
    • Hesse
      • Odenwald
        • Lautertal (Odenwald)
          • Gadernheim
    		S Wolfsried collection
          • Reichenbach
            • Hohenstein
    		Lapis 25(2), 13-30 (2000)
    • Saxony
      • Erzgebirge
        • Niederschlag-Bärenstein District
          • Bärenstein
            • Niederschlag
    		Schlegel, F. (2001): Erstfund aus Sachsen: Arsenbrackebuschit ! (Bemerkenswerter Eigenfund). Lapis, 26 (5), 34-35.
    Mexico
     
    • Durango
      • Mun. de Mapimí
        • Mapimí
    		Robert Meyer. ID by Marcus Origlieri, personal communication
    Namibia
     
    • Otjikoto (Oshikoto) Region
      • Tsumeb
    		Fortschr.Mineral.(1976) 54, Beiheft 1, p.38
    USA
     
    • California
      • San Bernardino Co.
        • Clark Mts (Clark Mountain Range)
          • Clark Mountain District
            • Pactolus
              • Mohawk Hill
    		www.mineralsocal.org
    • Montana
      • Granite Co.
        • Philipsburg District (Flint Creek District)
          • John Long Mts
            • Flint Creek Valley
    		Collection of J.Dagenais
    • New Mexico
      • Grant Co.
        • Hachita
    		Anthony, Bideaux, Bladh, Nichols: Handbook of Mineralogy, Vol. IV
    Mineral and/or Locality
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    Copyright © Jolyon Ralph and Ida Chau 1993-2011. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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