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Doyleite

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Baoshan Prefecture, Yunnan Province, China
© fabreminerals.com

Show Doyleite Photos (13)
Formula:
Al(OH)
 
3
System:TriclinicColour:White, creamy-white, ...
Lustre:VitreousHardness:2½ - 3
This page provides mineralogical data about Doyleite.

Classification of Doyleite

IMA status:Approved
Strunz 8th edition ID:4/F.02-40
Nickel-Strunz 10th (pending) edition ID:4.FE.10

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
Dana 8th edition ID:6.3.4.1

6 : HYDROXIDES AND OXIDES CONTAINING HYDROXYL
3 : X(OH)3
Hey's CIM Ref.:7.6.7

7 : Oxides and Hydroxides
6 : Oxides of Al
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Type Occurrence of Doyleite

Co-type Localities:Francon quarry, St. Michel District, Montréal, Jacques Cartier Co., Québec, Canada
Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville Co., Québec, Canada
Year of Discovery:1985

Physical Properties of Doyleite

Lustre:Vitreous
Colour:White, creamy-white, bluish-white
Hardness (Mohs):2½ - 3

Crystallography of Doyleite

Crystal System:Triclinic
Cell Parameters:a = 5Å, b = 5.17Å, c = 4.98Å
α = 97.5°, β = 118.6°, γ = 104.74°
Ratio:a:b:c = 0.967 : 1 : 0.963
Unit Cell Volume:V 104.37 ų (Calculated from Unit Cell)

Optical Data of Doyleite

Type:Biaxial (+)
RI values: nα = 1.545 nβ = 1.553 nγ = 1.566
2V:Measured: 77° , Calculated: 78°
Maximum Birefringence:δ = 0.021

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Low
Dispersion:none

Chemical Properties of Doyleite

Formula:
Al(OH)
 
3
Essential elements:Al, H, O
All elements listed in formula:Al, H, O

Relationship of Doyleite to other Species

Related Minerals - Nickel-Strunz Grouping):
4.FE.05Amakinite
(Fe
2+
 
,Mg)(OH)
 
2
4.FE.05Brucite
Mg(OH)
 
2
4.FE.05Portlandite
Ca(OH)
 
2
4.FE.05Pyrochroite
Mn(OH)
 
2
4.FE.05Theophrastite
Ni(OH)
 
2
4.FE.10Bayerite
Al(OH)
 
3
4.FE.10Gibbsite
Al(OH)
 
3
4.FE.10Nordstrandite
Al(OH)
 
3
4.FE.15Böhmite
AlO(OH)
4.FE.15Lepidocrocite
γ-Fe
3+
 
O(OH)
4.FE.20Grimaldiite
CrO(OH)
4.FE.20Heterogenite
CoO(OH)
4.FE.25Feitknechtite
Mn
3+
 
O(OH)
4.FE.25Lithiophorite
(Al,Li)MnO
 
2
(OH)
 
2
4.FE.30Quenselite
PbMnO
 
2
(OH)
4.FE.35Ferrihydrite
Fe
 
5
O
 
3
(OH)
 
9
4.FE.40Feroxyhyte
Fe
3+
 
O(OH)
4.FE.40Vernadite
(Mn
4+
 
,Fe
3+
 
,Ca,Na)(O,OH)
 
2
 · nH
 
2
O
4.FE.45Quetzalcoatlite
Zn
 
6
Cu
 
3
(TeO
 
6
)
 
2
(OH)
 
6
·Ag
 
x
Pb
 
y
Cl
 
x+2y
Related Minerals - Hey's Index Grouping:
7.6.1Corundum
Al
 
2
O
 
3
7.6.2Böhmite
AlO(OH)
7.6.2Diaspore
AlO(OH)
7.6.4Gibbsite
Al(OH)
 
3
7.6.5Bayerite
Al(OH)
 
3
7.6.6Nordstrandite
Al(OH)
 
3
7.6.8Akdalaite
4Al
 
2
O
 
3
 · H
 
2
O

Other Names for Doyleite

Synonyms:
IMA1980-041
German names:
Doyleit
Russian names:
Дойлеит
Spanish names:
Doyleita

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 Doyleite

Reference List:Chao, G. Y., Baker, J., Sabina, A. P., and Roberts, A. C. (1985): Doyleite, a new polymorph of Al(OH)3, and its relationship to bayerite, gibbsite and nordstrandite.: Canadian Mineralogist: 23, 21-28.

American Mineralogist: 71: 845.

Zeitschrift für Kristallographie: 213: 96-100.

Internet Links for Doyleite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Doyleite in the Natural History Museum (London) online catalogue
  • Doyleite details from Handbook of Mineralogy (PDF)
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    Localities for Doyleite

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    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.
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    (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.
    Canada
     
    • Québec
      • Jacques Cartier Co.
        • Montréal
          • St. Michel District
    		Canadian Mineralogist (1985): 23: 21-28.
      • Rouville Co.
        • Mont Saint-Hilaire
    		Can.Min.(1985) 23, 21-28, Horváth, L and Gault, R.A. (1990), The mineralogy of Mont Saint-Hilaire Quebec. Mineralogical Record: 21: 284-359.
      • Verchères Co.
        • Varennes & St-Amable
          • Saint-Amable sill
    		Mineralogical Record: 29: 83.
    China
     
    • Yunnan Province
    		Fabre Minerals
    Germany
     
    • Baden-Württemberg
      • Black Forest
        • Wolfach
          • Oberwolfach
            • Rankach valley
    		Walenta, K. (1992): Die Mineralien des Schwarzwaldes. Chr. Weise Verlag, München, 336 pp. (in German); WALENTA, K. (1993): Neue Mineralfunde von der Grube Clara (5. Folge). - Lapis 18 (1), 16-23; KOLITSCH, U. (1997): Uranosphärit und weitere neue Mineralfunde von der Grube Clara im Schwarzwald. Mineralien-Welt 8 (3), 18-26; KOLITSCH, U. (1997): Uranosphärit und weitere neue Mineralfunde von der Grube Clara im Schwarzwald. - Mineralien-Welt 8 (3), 18-26.
    Norway
     
    • Oppland
      • Lunner
        • Nordmarka
    		G. Raade: "Gjerdingen-ekeritten, en unik mineralforekomst", Norsk Bergverksmuseum Skrift nr. 30, 2005, p17.
    UK
     
    • England
      • North Yorkshire
        • North Pennines
          • Pateley Bridge District
            • Greenhow
    		Young, B.; Ryback, G.; Braithwaite, R. S. W.; Francis, J. G. (1997): Prosopite, doyleite and otavite from Coldstones quarry, Pateley bridge, North Yorkshire. Mineral. Mag. 61, 895-897.
    USA
     
    • Nevada
      • Eureka Co.
        • Maggie Creek District
    		NBMG Spec. Pub. 31 Minerals of Nevada
    Mineral and/or Locality
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