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About BayeriteHide

Karl J. Bayer
Specific Gravity:
Crystal System:
The artificial compound is thought to have been named for Karl Josef Bayer (4 March 1847, Bielitz , Austrian Silesia – 4 October 1904, Rietzdorf, now Rečica ob Paki, Slovenia). The name was then applied to the natural mineral. Bayer was a chemist who in 1887, invented the Bayer process of extracting alumina from bauxite, essential to this day to the economical production of aluminium.
This page provides mineralogical data about Bayerite.

Classification of BayeriteHide

Approved, 'Grandfathered' (first described prior to 1959)
First Published:

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
F : Hydroxides (without V or U)
E : Hydroxides with OH, without H2O; sheets of edge-sharing octahedra

3 : X(OH)3

7 : Oxides and Hydroxides
6 : Oxides of Al

Physical Properties of BayeriteHide

Transparent, Translucent
2.53 g/cm3 (Measured)    2.54 g/cm3 (Calculated)

Optical Data of BayeriteHide

Biaxial (+)
RI values:
nα = 1.565 - 1.574 nγ = 1.580 - 1.584
Max Birefringence:
δ = 0.015
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:

Chemical Properties of BayeriteHide


Crystallography of BayeriteHide

Crystal System:
Class (H-M):
2/m - Prismatic
Space Group:
Cell Parameters:
a = 5.0626 Å, b = 8.6719 Å, c = 9.4254 Å
β = 90.26°
a:b:c = 0.584 : 1 : 1.087
Unit Cell V:
413.79 ų (Calculated from Unit Cell)
As very fine fibers; also as flaky and tabular crystals, to 0.1 mm; in radiating hemispherical aggregates and crusts

Crystal StructureHide

Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Big Balls | Small Balls | Just Balls | Spacefill
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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0009134BayeriteBalan E, Blanchard M, Hochepied J-F, Lazzeri M (2008) Surface modes in the infrared spectrum of hydrous minerals: the OH stretching modes of bayerite Physics and Chemistry of Minerals 35 279-2852008synthetic0293
0010649BayeriteRothbauer R, Zigan F, O'Daniel H (1967) Verfeinerung der struktur des bayerits, Al(OH)3 Zeitschrift fur Kristallographie 125 317-33119670293
0019360BayeriteZigan F, Joswig W, Burger N (1978) Die wasserstoffpositionen im bayerit, Al(OH)3 Zeitschrift fur Kristallographie 148 255-2731978synthetic0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
4.73 Å(s)
4.36 Å(ms)
3.19 Å(w)
2.70 Å(vw)
2.21 Å(s)
2.16 Å(vw)
1.720 Å(m)
Recorded on type material

Geological EnvironmentHide

Geological Setting:
In bauxites; as weathered crusts on amphiboles and pyroxenes

Type Occurrence of BayeriteHide

Geological Setting of Type Material:
Precipitates from high-aluminium gels at pH values above 5.8
Associated Minerals at Type Locality:
Gedeon, T.G. (1956) Bayerite in Hungarian bauxite. Acta geologica Academiae Scientiarum Hungaricae: 4: 95-105.

Other Language Names for BayeriteHide

Simplified Chinese:与拜三水铝石

Common AssociatesHide

Associated Minerals Based on Photo Data:
1 photo of Bayerite associated with AluminiumAl

Related Minerals - Nickel-Strunz GroupingHide

4.FE.05BruciteMg(OH)2Trig. 3m (3 2/m) : P3m1
4.FE.05PortlanditeCa(OH)2Trig. 3m (3 2/m)
4.FE.05PyrochroiteMn(OH)2Trig. 3m (3 2/m)
4.FE.05TheophrastiteNi(OH)2Trig. 3m (3 2/m) : P3m1
4.FE.10GibbsiteAl(OH)3Mon. 2/m
4.FE.10NordstranditeAl(OH)3Tric. 1 : P1
4.FE.15BöhmiteAlO(OH)Orth. mmm (2/m 2/m 2/m)
4.FE.15Lepidocrociteγ-Fe3+O(OH)Orth. mm2 : Cmc21
4.FE.25FeitknechtiteMn3+O(OH)Trig. 3m (3 2/m) : P3m1
4.FE.25Lithiophorite(Al,Li)MnO2(OH)2Trig. 3m (3 2/m) : R3m
4.FE.30QuenselitePbMnO2(OH)Mon. 2/m : P2/b
4.FE.40Vernadite(Mn4+,Fe3+,Ca,Na)(O,OH)2 · nH2OHex.
4.FE.45QuetzalcoatliteZn6Cu3(TeO6)2(OH)6 · AgxPbyClx+2yTrig. 3m (3 2/m) : P3m1

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

7.6.1CorundumAl2O3Trig. 3m (3 2/m) : R3c
7.6.2BöhmiteAlO(OH)Orth. mmm (2/m 2/m 2/m)
7.6.2DiasporeAlO(OH)Orth. mmm (2/m 2/m 2/m)
7.6.4GibbsiteAl(OH)3Mon. 2/m
7.6.6NordstranditeAl(OH)3Tric. 1 : P1

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 BayeriteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Gedeon, T.G. (1956) Bayerite in Hungarian bauxite. Acta geologica Academiae Scientiarum Hungaricae: 4: 95-105.
Fleischer, M. (1956) New mineral names. American Mineralogist: 41: 958-960.
Gross, S. and Heller, L. (1963) A natural occurrence of bayerite. Mineralogical Magazine: 33: 723-724.
Fleischer, M. (1964) New mineral names. American Mineralogist: 49: 816-821.
Rothbauer, R., Zigan, F., O'Daniel, H. (1967) Verfeinerung der struktur des bayerits, Al(OH)3. Zeitschrift für Kristallographie: 125: 317-331.
Khorosheva, D. P. (1968) Bayerite from the bauxite horizon of the middle Dnieper region. Doklady Acad. Nauk SSSR: 182: 123-126. (in Russian)
Schoen, R. and Roberson, C. E. (1970) Structures of aluminum hydroxide and geochemical implications. American Mineralogist: 55: 43-77.
McHardy, W. J. and Thomson, A. P. (1971) Conditions for the formation of bayerite and gibbsite. Mineralogical Magazine: 38: 358-368.
Gross, S. (1977) The mineralogy of the Hatrurim Formation, Israel. Geol. Sur. Israel Bull.: 70: 14-15.
Zigan, F., Joswig, W. and Burger, N. (1978) Die Wasserstoffpositionen im Bayerit, Al(OH)3. Zeitschrift für Kristallographie: 148: 255-273. (in German with English abstract)
Anthony, J. W. et al. (1997): Handbook of Mineralogy, Vol. 3, 47.
Ruan, H.D., Frost, R.L., Kloprogge, J.T. (2001) Comparison of Raman spectra in characterizing gibbsite, bayerite, diaspore and boehmite. Journal of Raman Spectroscopy: 32: 745-750.
Ruan, H.D., Frost, R.L., Kloprogge, J.T., Schulze, D.G., Duong, L. (2003) FT-Raman spectroscopy and SEM of gibbsite, bayerite, boehmite and diaspore in relation to the characterization of bauxite. in 2001. A Clay Odyssey, Elsevier B.V. (Amsterdam, Netherlands): 545-552.
Balan, E., Blanchard, M., Hochepied, J.-F., Lazzeri, M. (2008) Surface modes in the infrared spectrum of hydrous minerals: the OH stretching modes of bayerite. Physics and Chemistry of Minerals: 35: 279-285.

Internet Links for BayeriteHide

Localities for BayeriteHide

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.
  • San Luis Province
    • Chacabuco department
      • Sierra de la Estranzuela
Anthony, J. W. et al. (1997): Handbook of Mineralogy, Vol. 3, 47
  • Queensland
    • Cook Shire
      • Cape York Peninsula
Taylor, G., Eggleton, T. (2004) "Little Balls”: The origin of the Weipa bauxite. In: Roach, I.C. (ed.) (2004) Regolith 2004, CRC LEME, pp. 350-354.
  • Guangxi
    • Baise
      • Pingguo Co.
Zhongcao Liang (1983): Geology and Prospecting 19(8), 24-28; Xinyu Cao and Tongjiang Tang (1986): Geology and Prospecting 22(2), 18-23
  • Rhineland-Palatinate
    • Vulkaneifel District
      • Daun
        • Üdersdorf
Hentschel, G., Die Minerale der Üdersdorfer Lava, Lapis, Weise Verlag, München, 11/1989
  • Attica
    • West Attica
      • Megara
Z. Maksimovitch, D.L. Bisch : "Brindleyite, a nickel-rich aluminous serpentinite mineral analogous to berthierine", Amer. Mineralogist, 1978, 63, 484-489"
  • West Azerbaijan Province
    • Takab County
Daliran, F. (2008): The carbonate rock-hosted epithermal gold deposit of Agdarreh, Takab geothermal field, NW Iran—hydrothermal alteration and mineralisation. Mineralium Deposita, 43, 383-404
  • Perak
    • Balang Padang
Baioumy,Hassan and Ibrahim,Abdul Razak (2012) Mineralogical Variations among the Kaolin Deposits in Malaysia :Annual International Conference on Geological & Earth Sciences (GEOS 2012)
    • Kinta District
      • Bukit Lampas
Baioumy,Hassan and Ibrahim,Abdul Razak (2012) Mineralogical Variations among the Kaolin Deposits in Malaysia :Annual International Conference on Geological & Earth Sciences (GEOS 2012)
Middle East (TL)
Gross, S. (1977): The Mineralogy of the Hatrurim Formation, Israel. Geological Survey of Israel, Bulletin no. 70, 80 pp.; Mineralogical Magazine 1963 33 : 723-724.
New Zealand
  • New Zealand Outlying Islands
    • Kermadec Islands
Anthony, J. W. et al. (1997): Handbook of Mineralogy, Vol. 3, 47. Rodgers, K.A., Gregory, M.R., Cooney, R.P. (1989) Bayerite, AL(OH)3, From Raoul Island, Kermadec Group, South Pacific. Clay Minerals 24, 531-538.
  • Silesian Voivodeship
    • Wodzisław Co.
      • Radlin
Łukasz Kruszewski (2012) Unique chloride assemblage of exhalative origin from burning coal-mining dump in Radlin (Rybnik Coal Area, S Poland). Mineralogical Society of Poland Special Papers 40
  • Krasnoyarsk Krai
    • Enisei Range (Yenisei Ridge; Enisei Ridge)
Handbook of Mineralogy
  • England
    • East Sussex
      • Brighton and Hove
[Specimen in the Natural History Museum, London]
      • Lewes
        • Newhaven
De Putter, T., Bernard, A., Perruchot, A., Nicaise, D., & Dupuis, C. (2000). Low-temperature acid weathering in Newhaven, Sussex, United Kingdom, and its application to theoretical modeling in radioactive waste-disposal sites. Clays and Clay Minerals, 48(2), 238-245.
  • Nebraska
    • Cedar Co.
R.M. Joeckel, K.D. Wally, B.J. Ang Clement, P.R. Hanson, J.S. Dillon, S.K. Wilson (2011) Secondary minerals from extrapedogenic per latus acidic weathering environments at geomorphic edges, Eastern Nebraska, USA. CATENA, Volume 85:253-266
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