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Arsenbrackebuschite

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About ArsenbrackebuschiteHide

Formula:
Pb2Fe3+(AsO4)2(OH)
May rarely contain minor Zn replacing Fe; charge-balance by H2O substituting for OH.
Colour:
Light amber yellow to red brown.
Lustre:
Sub-Adamantine, Sub-Vitreous, Resinous, Waxy
Hardness:
Specific Gravity:
6.54 (Calculated)
Crystal System:
Monoclinic
Name:
Named by Wolfgang Hofmeister and Ekkehart Tillmanns in 1976 in allusion to this species being the arsenate analogue of brackebuschite.
May be confused with mawbyite and carminite, which are also Pb-Fe-arsenates, but with a much lower Pb content.


Classification of ArsenbrackebuschiteHide

Approved
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
40.2.8.2

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

Physical Properties of ArsenbrackebuschiteHide

Sub-Adamantine, Sub-Vitreous, Resinous, Waxy
Transparency:
Transparent, Translucent
Colour:
Light amber yellow to red brown.
Streak:
Light brownish yellow
Hardness:
4½ on Mohs scale
Tenacity:
Brittle
Cleavage:
Perfect
{010}
Density:
6.54 g/cm3 (Calculated)

Optical Data of ArsenbrackebuschiteHide

Type:
Biaxial (-)
RI values:
nα = 2.000 nγ = 2.040
Warning: number_format() expects parameter 1 to be float, string given in /home/mindat/www/show_class.php on line 4136
2V:
Measured: 30°
Birefringence:
0.04
Max Birefringence:
δ = 0.040
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
relatively weak
Comments:
RI difficult to measure; X' < 2.00, Z" > 2.04

Chemical Properties of ArsenbrackebuschiteHide

Formula:
Pb2Fe3+(AsO4)2(OH)

May rarely contain minor Zn replacing Fe; charge-balance by H2O substituting for OH.
IMA Formula:
Pb2(Fe3+,Zn)(AsO4)2(OH,H2O)

Crystallography of ArsenbrackebuschiteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P2/m
Setting:
P2/m
Cell Parameters:
a = 7.763 Å, b = 6.046 Å, c = 9.022 Å
β = 112.5°
Ratio:
a:b:c = 1.284 : 1 : 1.492
Unit Cell V:
391.22 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Wedge-shaped crystals, also elongated

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
4.92 (25)
3.68 (25)
3.44 (30)
3.268 (90)
3.02 (100)
3.012 (100)
2.777 (60)
2.313 (30)
2.133 (30)
Comments:
ICDD 29-1428; strongest lines may appear as a single diffuse line

Type Occurrence of ArsenbrackebuschiteHide

Synonyms of ArsenbrackebuschiteHide

Other Language Names for ArsenbrackebuschiteHide

Relationship of Arsenbrackebuschite to other SpeciesHide

Other Members of this group:
ArsentsumebitePb2Cu(AsO4)(SO4)(OH)Mon. 2/m : P21/m
BearthiteCa2Al(PO4)2(OH)Mon. 2/m : P21/m
BrackebuschitePb2Mn3+(VO4)2(OH)Mon. 2/m : P21/m
BushmakinitePb2Al(PO4)(VO4)(OH)Mon. 2/m : P21/m
CalderónitePb2Fe3+(VO4)2(OH)Mon. 2/m : P21/m
CanosioiteBa2Fe3+(AsO4)2(OH)Mon. 2/m : P21/m
FeinglositePb2Zn(AsO4)2 · H2OMon. 2/m
FerribushmakinitePb2Fe3+(PO4)(VO4)(OH)Mon. 2/m : P21/m
GamagariteBa2Fe3+(VO4)2(OH)Mon. 2/m : P21/m
GoedkeniteSr2Al(PO4)2(OH)Mon. 2/m : P21/m
GrandaiteSr2Al(AsO4)2(OH)Mon. 2/m : P21/m
LombardoiteBa2Mn3+(AsO4)2(OH)Mon. 2/m : P21/m
TokyoiteBa2Mn3+(VO4)2(OH)Mon. 2/m : P21/m
TsumebitePb2Cu(PO4)(SO4)(OH)Mon. 2/m : P21/m
Unnamed (possible ordered As-analogue of Tokyoite)Ba2Mn[(As,V)O4]2(OH)Mon. 2/m : P21/m

Common AssociatesHide

Associated Minerals Based on Photo Data:
Mimetite3 photos of Arsenbrackebuschite associated with Mimetite on mindat.org.
Smithsonite3 photos of Arsenbrackebuschite associated with Smithsonite on mindat.org.
Segnitite2 photos of Arsenbrackebuschite associated with Segnitite on mindat.org.
Tsumcorite2 photos of Arsenbrackebuschite associated with Tsumcorite on mindat.org.
Carminite1 photo of Arsenbrackebuschite associated with Carminite on mindat.org.
Cerussite1 photo of Arsenbrackebuschite associated with Cerussite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

8.BG.CanosioiteBa2Fe3+(AsO4)2(OH)Mon. 2/m : P21/m
8.BG.05ArsentsumebitePb2Cu(AsO4)(SO4)(OH)Mon. 2/m : P21/m
8.BG.05BearthiteCa2Al(PO4)2(OH)Mon. 2/m : P21/m
8.BG.05BrackebuschitePb2Mn3+(VO4)2(OH)Mon. 2/m : P21/m
8.BG.05GamagariteBa2Fe3+(VO4)2(OH)Mon. 2/m : P21/m
8.BG.05GoedkeniteSr2Al(PO4)2(OH)Mon. 2/m : P21/m
8.BG.05UM1994-19-PO:CuHMoPbPb2Cu(PO4)(MoO4,AsO4,CrO4,GaO4)(OH)
8.BG.05TsumebitePb2Cu(PO4)(SO4)(OH)Mon. 2/m : P21/m
8.BG.05FeinglositePb2Zn(AsO4)2 · H2OMon. 2/m
8.BG.05BushmakinitePb2Al(PO4)(VO4)(OH)Mon. 2/m : P21/m
8.BG.05TokyoiteBa2Mn3+(VO4)2(OH)Mon. 2/m : P21/m
8.BG.05CalderónitePb2Fe3+(VO4)2(OH)Mon. 2/m : P21/m
8.BG.10MélonjosephiteCaFe2+Fe3+(PO4)2(OH)
8.BG.15TancoiteLiNa2Al(PO4)(HPO4)(OH)Orth. mmm (2/m 2/m 2/m) : Pbca

Related Minerals - Dana Grouping (8th Ed.)Hide

40.2.8.1BrackebuschitePb2Mn3+(VO4)2(OH)Mon. 2/m : P21/m

Fluorescence of ArsenbrackebuschiteHide

Not fluorescent

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.

References for ArsenbrackebuschiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
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 ArsenbrackebuschiteHide

Localities for ArsenbrackebuschiteHide

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 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Austria
 
  • Carinthia
    • Karawanken
      • Finkenstein
        • Mallestiger Mittagskogel
A.Pichler (2003)
  • Lower Austria
    • Mostviertel
      • Annaberg
Auer, C. & Kolitsch, U. (2015): 1946) Arsendescloizit und Arsenbrackebuschit vom Silberbergbau Annaberg, NÖ. Pp. 261-262 in Niedermayr, G. et al. (2015): Neue Mineralfunde aus Österreich LXIV. Carinthia II, 205./125., 207-280.
  • Styria
    • Fischbacher Alpen
      • 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
Schnorrer, G. and Poeverlein, R. (2002) Schwaz-Brixlegg-Fundstellen: 2. Die Minerale des Stockerstollens bei Brixlegg in Tirol. Aufschluss, 53, 209-228.
France
 
  • Auvergne-Rhône-Alpes
    • Allier
      • Ébreuil
        • Échassières
Uwe Kolitsch (EDS analysis), to be published
Kolitsch, U., Gröbner, J. & Brandstätter, F. (2009): Neufunde von Les Montmins, Allier, Frankreich. Lapis 34 (11), 24-32; 54 (in German).
    • 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.
Indonesia
 
  • Maluku Islands (Moluccas)
    • Maluku Province
      • Wetar Island
Mineralium Deposita (2005) 40: 76–99
Mexico
 
  • Durango
    • Mun. de Mapimí
      • Mapimí
Robert Meyer. ID by Marcus Origlieri, personal communication
Namibia (TL)
 
  • Oshikoto Region (Otjikoto Region)
    • Tsumeb
Fortschr.Mineral.(1976) 54, Beiheft 1, p.38; Bezing, L. von., Bode, R., and Jahn, S., (2016) Namibia Minerals and Localities II. Edition Krüger-Stiftung, Bode Verlag GmbH, Salzhemmendorf, Germany, 37 pg (in English)
South Africa
 
  • North West Province
    • Bojanala Platinum District
      • Western Bushveld Complex
        • Brits (Brits District)
Atanasova, M., Cairncross, B. and Windisch, W.R. (2016) Microminerals of the Bushveld Complex, South Africa. Popular Geoscience Series 6, Council for Geoscience, Pretoria, South Africa, pg 181
USA
 
  • California
    • San Bernardino Co.
      • Clark Mts (Clark Mountain Range)
        • Clark Mountain District (Clark District)
          • Mohawk Hill
www.mineralsocal.org
  • Montana
    • Granite Co.
      • Philipsburg District (Flint Creek District)
        • John Long Mts
          • Black Pine Ridge
Collection of J.Dagenais
  • Nevada
    • Mineral Co.
      • Fitting District
        • Luning
          • Rhyolite Pass
Collected by and in the collection of Joan Beyer. Raman analyzed at the University of Arizona.
  • New Mexico
    • Grant Co.
      • Eureka District
Anthony, Bideaux, Bladh, Nichols: Handbook of Mineralogy, Vol. IV
Mineral and/or Locality  
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