Mindat Logo
Home Page Log In Message Board The Mindat Directory
Register Search Pages Chat Now! (2 online) Mindat Auctions

Beudantite

Big Photo

Bad Ems District, Lahn valley, Rhineland-Palatinate, Germany
© Stephan Wolfsried

Show Beudantite Photos (104)
Formula:
PbFe
 
3
[(OH)
 
6
|SO
 
4
|AsO
 
4
]
System:TrigonalColour:Black, dark green, ...
Lustre:Vitreous, ResinousHardness:3½ - 4½
Name:
For Francois Sulpice Beudant (1787-1850), French Mineralogist, University of Paris, Paris, France.


Beudantite Subgroup of the Alunite Group. The arsenate analogue of Corkite with which a complete solid-solution range exists. Also forms a solid solution with Segnitite and Plumbojarosite from which it is difficult to distinguish.

A secondary mineral occurring in the oxidized zones of polymetallic deposits. It shows a large variety of different habits (tabular, acute rhombohedral, pseudo-cubic, pseudo-cuboctahedral).
Some beudantite (and segnitite) may contain Sb replacing Fe.

Classification of Beudantite

IMA status:Approved
Strunz 8th edition ID:7/B.35-90
Nickel-Strunz 10th (pending) edition ID:8.BL.05

8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
L : With medium-sized and large cations, (OH, etc.):RO4 = 3:1
Dana 8th edition ID:43.4.1.1

43 : COMPOUND PHOSPHATES, ETC.
4 : Anhydrous Compound Phosphates, etc·, Containing Hydroxyl or Halogen
Hey's CIM Ref.:22.3.24

22 : Phosphates, Arsenates or Vanadates with other Anions
3 : Phosphates, arsenates or vanadates with sulphates
mindat.org URL:http://www.mindat.org/min-652.html
Please feel free to link to this page.

Type Occurrence of Beudantite

Type Locality:Louise Mine, Bürdenbach, Altenkirchen, Wied Iron Spar District, Westerwald, Rhineland-Palatinate, Germany
Year of Discovery:1826

Occurrences of Beudantite

Geological Setting:Secondary mineral in oxidation zone of polymetallic deposits.

Physical Properties of Beudantite

Lustre:Vitreous, Resinous
Diaphaneity (Transparency):Transparent, Translucent
Comment:May be frosted.
Colour:Black, dark green, brown, yellowish, red, greenish yellow, brown
Streak:Grayish yellow to green
Hardness (Mohs):3½ - 4½
Cleavage:Distinct/Good
Good on {0001}
Density (measured):4.48(2) g/cm3
Density (calculated):4.49 g/cm3

Crystallography of Beudantite

Crystal System:Trigonal
Class (H-M):3m (3 2/m) - Hexagonal Scalenohedral
Space Group:R3m {R3 2/m}
Cell Parameters:a = 7.32Å, c = 17.02Å
Ratio:a:c = 1 : 2.325
Unit Cell Volume:V 789.79 ų (Calculated from Unit Cell)
Z:3
Morphology:Pseudo-cubic. Crystals tabular, pseudo-cubes, or pseudo-octahedra. Microcrystalline massive.
Crystal Atlas:
Image Loading
Click on an icon to view
Beudantite no.1 - Goldschmidt (1913-1926)
Beudantite no.2 - Goldschmidt (1913-1926)
Beudantite no.4 - Goldschmidt (1913-1926)

About Crystal Atlas

You may need to scroll this box using your mouse to view the full instructions.

The mindat.org Crystal Atlas allows you to view a selection of crystal drawings of real and idealised crystal forms for this mineral and, in certain cases, 3d rotating crystal objects. You need Java to see these. You can download Java for free - click here to download Java

The 3d models and java code are kindly provided by www.smorf.nl. You can control the movement of the models by holding down the left mouse-button over the 3d model and moving your mouse. Keyboard controls are:

: default positions
t/T: decrease/increase transparency x/X: next/previous texture
b/B: next/previous background w: toggle wireframe
s: toggle sticks m: toggle miller indices
k: toggle crystallographic axes =/-: zoom in/out
r: stop/start rotation 1/2/3

Optical Data of Beudantite

Type:Uniaxial (-)
RI values: nω = 1.957 nε = 1.943
Maximum Birefringence:δ = 0.014

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Very High
Pleochroism:Visible
Comments:O = Yellow to red-brown
E = Colourless to yellow
Comments:Anomalously biaxial, exhibiting sectoring. Crystals may exhibit three biaxial sectors around an uniaxial core (Laurion).

Chemical Properties of Beudantite

Formula:
PbFe
 
3
[(OH)
 
6
|SO
 
4
|AsO
 
4
]
Essential elements:As, Fe, H, O, Pb, S
All elements listed in formula:As, Fe, H, O, Pb, S
Common Impurities:Al,P

Relationship of Beudantite to other Species

Series:Forms a series with Segnitite (see here)
Member of Group:
Alunite Supergroup:
A
1+
 
B
3
3
(SO
 
4
)
 
2
(OH)
 
6
Beudantite Subgroup:
AB
 
3
(XO
 
4
)(SO
 
4
)(OH)
 
6
Common Associates:
ScoroditePharmacosideriteOliveniteMimetiteDussertite
DuftiteCerussiteCarminiteBayldoniteAzurite
ArseniosideriteAnglesite
Related Minerals - Nickel-Strunz Grouping):

- +
8.BL.05Corkite
PbFe
 
3
[(OH)
 
6
|SO
 
4
|PO
 
4
]
8.BL.05Hidalgoite
PbAl
 
3
[(OH)
 
6
|SO
 
4
|AsO
 
4
]
8.BL.05Hinsdalite
PbAl
 
3
[(OH)
 
6
|SO
 
4
|PO
 
4
]
8.BL.05Kemmlitzite
(Sr,Ce)Al
 
3
[(OH)
 
6
|SO
 
4
|AsO
 
4
]
8.BL.05Orpheite
PbAl
 
3
[(OH)
 
6
|(PO
 
4
,SO
 
4
)
 
2
] (?)
8.BL.05Svanbergite
SrAl
 
3
[(OH)
 
6
|SO
 
4
|PO
 
4
]
8.BL.05Weilerite
8.BL.05Woodhouseite
CaAl
 
3
[(OH)
 
6
|SO
 
4
|PO
 
4
]
8.BL.05Gallobeudantite
PbGa
 
3
[(OH)
 
6
|SO
 
4
|AsO
 
4
]
8.BL.10Arsenogoyazite
SrAl
 
3
[(OH)
 
5
|(AsO
 
4
)
 
2
] · H
 
2
O
8.BL.10Arsenogorceixite
BaAl
 
3
[(OH)
 
5
|(AsO
 
4
)
 
2
] · H
 
2
O
8.BL.10Arsenocrandallite
(Ca,Sr)Al
 
3
[(OH)
 
5
|(AsO
 
4
,PO
 
4
)
 
2
] · H
 
2
O
8.BL.10Benauite
SrFe
3+
3
[(OH)
 
6
|(HPO
 
4
,PO
 
4
)|(PO
 
4
,SO
 
4
)]
8.BL.10Crandallite
CaAl
 
3
[(OH)
 
5
|(PO
 
4
)
 
2
] · H
 
2
O
8.BL.10Dussertite
BaFe
3+
3
[(OH)
 
5
|(AsO
 
4
)
 
2
]
8.BL.10Eylettersite
(Th,Pb)Al
 
3
[(OH)
 
6
|(PO
 
4
,SiO
 
4
)
 
2
] ?
8.BL.10Gorceixite
BaAl
 
3
[(OH)
 
5
|(PO
 
4
)
 
2
] · H
 
2
O
8.BL.10Goyazite
SrAl
 
3
[(OH)
 
5
|(PO
 
4
)
 
2
] · H
 
2
O
8.BL.10Kintoreite
PbFe
3+
3
[(OH,H
 
2
O)
 
6
|(PO
 
4
)
 
2
]
8.BL.10Philipsbornite
PbAl
 
3
[(OH)
 
5
|(AsO
 
4
)
 
2
] · H
 
2
O
8.BL.10Plumbogummite
PbAl
 
3
[(OH)
 
5
|(PO
 
4
)
 
2
] · H
 
2
O
8.BL.10Segnitite
PbFe
3+
3
[(OH,H
 
2
O)
 
6
|(AsO
 
4
)
 
2
]
8.BL.10Springcreekite
BaV
3+
3
[(OH,H
 
2
O)
 
6
|(PO
 
4
)
 
2
]
8.BL.13Arsenoflorencite-(La)
LaAl
 
3
[(OH)
 
6
|(AsO
 
4
)
 
2
]
8.BL.13Arsenoflorencite-(Nd)
NdAl
 
3
[(OH)
 
6
|(AsO
 
4
)
 
2
]
8.BL.13Arsenoflorencite-(Ce)
CeAl
 
3
[(OH)
 
6
|(AsO
 
4
)
 
2
]
8.BL.13Florencite-(Ce)
CeAl
 
3
[(OH)
 
6
|(PO
 
4
)
 
2
]
8.BL.13Florencite-(La)
LaAl
 
3
[(OH)
 
6
|(PO
 
4
)
 
2
]
8.BL.13Florencite-(Nd)
NdAl
 
3
[(OH)
 
6
|(PO
 
4
)
 
2
]
8.BL.13Waylandite
(Bi,Ca)Al
 
3
[(OH)
 
6
|(PO
 
4
,SiO
 
4
)
 
2
]
8.BL.13Zaïrite
Bi(Fe
3+
 
,Al)
 
3
[(OH)
 
6
|(PO
 
4
)
 
2
]
8.BL.13Arsenowaylandite
BiAl
 
3
(AsO
 
4
)
 
2
(OH)
 
6
8.BL.13Graulichite-(Ce)
CeFe
3+
3
[(OH)
 
6
|(AsO
 
4
)
 
2
]
8.BL.15Viitaniemiite
Na(Ca,Mn
2+
 
)Al[(F,OH)
 
3
|PO
 
4
]
8.BL.25Pattersonite
PbFe
3+
3
(PO
 
4
)
 
2
(OH)
 
4
{(H
 
2
O)
 
0.5
(OH)
 
0.5
}
 
2
Related Minerals - Hey's Index Grouping:

- +
22.3.1Parnauite
Cu
 
9
[(OH)
 
10
|SO
 
4
|(AsO
 
4
)
 
2
] · 7H
 
2
O
22.3.2Ardealite
Ca
 
2
[HPO
 
4
|SO
 
4
] · 4H
 
2
O
22.3.3Machatschkiite
(Ca,Na)
 
6
AsO
 
4
(AsO
 
3
OH)
 
3
(PO
 
4
,SO
 
4
)·15H
 
2
O
22.3.4Clinotyrolite
Ca
 
2
Cu
 
9
[(OH,O)
 
10
|(AsO
 
4
,SO
 
4
)
 
4
] · 10H
 
2
O
22.3.5Peisleyite
Na
 
3
Al
 
16
[SO
 
4
|(PO
 
4
)
 
5
]
 
2
 · 20H
 
2
O
22.3.6Chalcophyllite
Cu
 
18
Al
 
2
[(OH)
 
9
|SO
 
4
|AsO
 
4
]
 
3
 · 33H
 
2
O
22.3.7Woodhouseite
CaAl
 
3
[(OH)
 
6
|SO
 
4
|PO
 
4
]
22.3.8Schlossmacherite
(H
 
3
O,Ca)Al
 
3
[(OH)
 
6
|(SO
 
4
,AsO
 
4
)
 
2
]
22.3.9Svanbergite
SrAl
 
3
[(OH)
 
6
|SO
 
4
|PO
 
4
]
22.3.10Kemmlitzite
(Sr,Ce)Al
 
3
[(OH)
 
6
|SO
 
4
|AsO
 
4
]
22.3.11Sanjuanite
Al
 
2
[OH|SO
 
4
|PO
 
4
] · 9H
 
2
O
22.3.12Kribergite
Al
 
5
[(OH)
 
4
|SO
 
4
|(PO
 
4
)
 
3
] · 4H
 
2
O
22.3.13Hotsonite
Al
 
11
[(OH)
 
21
|(SO
 
4
)
 
3
|(PO
 
4
)
 
2
] · 16H
 
2
O
22.3.14Weilerite
22.3.15Tsumebite
Pb
 
2
Cu[OH|SO
 
4
|PO
 
4
]
22.3.16Arsentsumebite
Pb
 
2
Cu[OH|SO
 
4
|AsO
 
4
]
22.3.17Hinsdalite
PbAl
 
3
[(OH)
 
6
|SO
 
4
|PO
 
4
]
22.3.18Hidalgoite
PbAl
 
3
[(OH)
 
6
|SO
 
4
|AsO
 
4
]
22.3.19Orpheite
PbAl
 
3
[(OH)
 
6
|(PO
 
4
,SO
 
4
)
 
2
] (?)
22.3.20Coconinoite
Fe
3+
2
Al
 
2
(UO
 
2
)
 
2
[(OH)
 
2
|SO
 
4
|(PO
 
4
)
 
4
] · 20H
 
2
O
22.3.21Sasaite
(Al,Fe
3+
 
)
 
14
[(OH)
 
7
|SO
 
4
|(PO
 
4
)
 
11
] · 83H
 
2
O
22.3.22Tristramite
(Ca,U,Fe)(PO
 
4
,SO
 
4
)·2H
 
2
O
22.3.23Corkite
PbFe
 
3
[(OH)
 
6
|SO
 
4
|PO
 
4
]
22.3.25Diadochite
Fe
3+
2
(PO
 
4
)(SO
 
4
)(OH)·5H
 
2
O
22.3.26Sarmientite
Fe
3+
2
[OH|SO
 
4
|AsO
 
4
] · 5H
 
2
O
22.3.27Bukovskýite
Fe
3+
2
[OH|SO
 
4
|AsO
 
4
] · 7H
 
2
O
22.3.28Zýkaite
Fe
3+
4
[OH|SO
 
4
|(AsO
 
4
)
 
3
] · 15H
 
2
O
22.3.29Tooeleite
Fe
3+
6
(AsO
 
3
)
 
4
(SO
 
4
)(OH)
 
4
· 4H
 
2
O
22.3.30Pitticite
[Fe, SO
 
4
, AsO
 
4
, H
 
2
O] ?
22.3.31Xiangjiangite
(Fe
3+
 
,Al)(UO
 
2
)
 
4
[OH|(SO
 
4
)
 
2
|(PO
 
4
)
 
2
] · 22H
 
2
O

Other Names for Beudantite

Synonyms:
Beudantite (of Lévy)Bieirosite
Other Languages:
German:Beudanit
Beudantit
Bieirosit
Russian:Бедантит
Spanish:Beudantita
Bieirosita
Varieties:
Cuprian Beudantite

Other Information

Other Information:Soluble in HCl.
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 Beudantite

Reference List:Lévy (1826) Annals of Philosophy, London: 11: 194.

Percy (1850) Philosophical Magazine and Journal of Science: 37: 161.

Dauber (1857) Annalen der Physik, Halle, Leipzig: 100: 579.

Rammelsberg (1857) Annalen der Physik, Halle, Leipzig: 100: 581.

Sandberger (1857) Annalen der Physik, Halle, Leipzig: 100: 611.

Lacroix (1915) Bulletin de la Société française de Minéralogie: 38: 35.

Hintze, Carl (1931) Handbuch der Mineralogie. Berlin and Leipzig. 6 volumes: 1 [4A]: 729.

Simpson (1938) Journal of the Royal Society of Western Australia: 24: 110.

Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged, 1124 pp.: 1001-1002.

Walenta, K. (1966) Beiträge zur Kenntnis seltener Arsenatmineralien unter besonderer Berücksichtigung von Vorkommen des Schwarzwaldes. 3. Folge. Tschermaks Mineral. Petrog. Mitt., 11, 121–164, esp. 122–129 (in German). Canadian Mineralogist: 26: 923-932.

Szymański, J.T. (1988) The crystal structure of beudantite, Pb(Fe, Al)3[(As, S)O4]2(OH)6. Canadian Mineralogist, 26, 923–932.

Giuseppetti, G. and C. Tadini (1989) Beudantite: PbFe3(SO4)(AsO4)(OH)6, its crystal structure, tetrahedral site disordering and scattered Pb distribution. Neues Jahrbuch für Mineralogie, Monatshefte (1989): 27-33.

Anthony, J.W., Bideaux, R.A., Bladh, K.W., and Nichols, M.C. (2000) Handbook of Mineralogy, Volume IV. Arsenates, Phosphates, Vanadates. Mineral Data Publishing, Tucson, AZ, 680pp.: 66.

Internet Links for Beudantite

Search Engines:
  • Look for Beudantite on Google
  • Look for Beudantite images on Google
    • External Links:
  • Look for Beudantite on Webmineral
  • Look for Beudantite on Athena Mineralogy
  • Look for Beudantite on Wikipedia
  • Look for Beudantite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Beudantite in the Natural History Museum (London) online catalogue
  • Beudantite details from Handbook of Mineralogy (PDF)
    • Mineral Dealers:
  • Buy RARE Minerals from Rocks of Africa
  • The Arkenstone - Fine Minerals
  • Buy from David K Joyce minerals
  • Find Beudantite on www.crystalclassics.co.uk
  • Edwards Minerals - Fine Specimens
  • rare and unusual minerals mainly crystallized
  • Top quality minerals from Kristalle of California
  • Buy minerals from Mineralium.com
  • Buy Fine Minerals from mineralsweb.com
  • Buy Minerals and Crystals from Crystalarium.com
  • Lapis Mineral Magazin
  • Rare and Unusual minerals at Mineralogical Research Company
    • Jobs:
  • Mining & Geology Jobs

    • Page Sponsor

    Sponsorship:This page is currently not sponsored. Click here to sponsor this page.

    Localities for Beudantite

    Show Locality List (281 Items)
    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.
    Mineral and/or Locality
    Google
     
    www.mindat.org Web
    Copyright © Jolyon Ralph and Ida Chau 1993-2009. 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. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 19th Nov 2009 19:32:11