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Doyleite

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Formula:
Al(OH)3
System:
Triclinic
Colour:
White, creamy-white, ...
Lustre:
Vitreous
Hardness:
2½ - 3
This page provides mineralogical data about Doyleite.

Classification of Doyleite

Approved
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
6.3.4.1

6 : HYDROXIDES AND OXIDES CONTAINING HYDROXYL
3 : X(OH)3
7.6.7

7 : Oxides and Hydroxides
6 : Oxides of Al
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First Recorded Occurrence of Doyleite

Year of Discovery:
1985

Physical Properties of Doyleite

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

Crystallography of Doyleite

Crystal System:
Triclinic
Cell Parameters:
a = 5.00Å, b = 5.17Å, c = 4.98Å
α = 97.5°, β = 118.6°, γ = 104.74°
Ratio:
a:b:c = 0.967 : 1 : 0.963
Comment:
Space group P-1 or P1
X-Ray Powder Diffraction Data:
d-spacingIntensity
4.794 (100)
4.296 (20)
4.182 (20)
2.360 (40)
1.972 (30)
1.857 (30)
1.842 (30)

Optical Data of Doyleite

Type:
Biaxial (+)
RI values:
nα = 1.545 nβ = 1.553 nγ = 1.566
2V:
Measured: 77° , Calculated: 78°
Max Birefringence:
δ = 0.021
Image 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:
All elements listed in formula:

Relationship of Doyleite to other Species

4.FE.05Amakinite(Fe2+,Mg)(OH)2
4.FE.05BruciteMg(OH)2
4.FE.05PortlanditeCa(OH)2
4.FE.05PyrochroiteMn(OH)2
4.FE.05TheophrastiteNi(OH)2
4.FE.10BayeriteAl(OH)3
4.FE.10GibbsiteAl(OH)3
4.FE.10NordstranditeAl(OH)3
4.FE.15BöhmiteAlO(OH)
4.FE.15Lepidocrociteγ-Fe3+O(OH)
4.FE.20GrimaldiiteCrO(OH)
4.FE.20HeterogeniteCoO(OH)
4.FE.25FeitknechtiteMn3+O(OH)
4.FE.25Lithiophorite(Al,Li)MnO2(OH)2
4.FE.30QuenselitePbMnO2(OH)
4.FE.35FerrihydriteFe103+O14(OH)2
4.FE.40FeroxyhyteFe3+O(OH)
4.FE.40Vernadite(Mn4+,Fe3+,Ca,Na)(O,OH)2 · nH2O
4.FE.45QuetzalcoatliteZn6Cu3(TeO6)2(OH)6 · AgxPbyClx+2y
7.6.1CorundumAl2O3
7.6.2BöhmiteAlO(OH)
7.6.2DiasporeAlO(OH)
7.6.4GibbsiteAl(OH)3
7.6.5BayeriteAl(OH)3
7.6.6NordstranditeAl(OH)3
7.6.8Akdalaite4Al2O3 · H2O

Other Names for Doyleite

Name in Other Languages:
German:Doyleit
Simplified Chinese:水铝石
Spanish:Doyleita
Traditional Chinese:水鋁石

Other Information

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 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.

CLARK, G.R., ROGERS, K.A., and HENDERSON, G.S. (1998) The crystal chemistry of doyleite, Al(OH)3. Zeitschrift für Kristallographie, 213 (2), 96-100.

Internet Links for Doyleite

Specimens:
The following Doyleite specimens are currently listed for sale on minfind.com.

Localities for Doyleite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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.
Bolivia
 
  • Potosí Department
    • Potosí City
Chris Stefano specimen
Canada
 
  • Québec
    • Montérégie
      • La Vallée-du-Richelieu RCM
        • Mont Saint-Hilaire
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. Horváth, L and Gault, R.A. (1990), The mineralogy of Mont Saint-Hilaire Quebec. Mineralogical Record, 21, 284-359.
      • Lajemmerais RCM
        • Varennes & St-Amable
HORVÁTH, L., PFENNINGER HORVÁTH, E., GAULT, R.A., and TARASSOFF, P. (1998) Mineralogy of the Saint Amable sill, Varennes and Saint Amable, Québec, Canada. Mineralogical Record, 29, 83 118.
Horváth, L., Pfenninger-Horváth, E., Gault, R. A., & Tarassoff, P. (1998): Mineralogy of the Saint-Amable Sill, Varennes and Saint-Amable, Québec. Mineralogical Record, 29: 83-118.
    • Montréal
CHAO, G.Y., BAKER, J., SABINA, A.P., and ROBERTS, A.C. (1985) Doyleite, a new polymoprph of Al(OH)3, and its relationship to bayerite, gibbsite and nordstrandite. Canadian Mineralogist, 23, 21-28. TARASSOFF, P., HORVÁTH, L. and PFENNINGER-HORVÁTH, E. (2006) Famous mineral localities: the Francon quarry, Montréal, Québec. Mineralogical Record, 37, 5-60.
China
 
  • Fujian Province
    • Fuzhou Prefecture
      • Jin'an District
        • Shoushan
Zilong Wu (2003): Geology of Fujian 22(3), 125-130
  • Hubei Province
    • Xianning Prefecture
      • Jiayu Co.
Songsheng Li (1993): Geology and Prospecting 29(1), 12-15
  • Jiangsu Province
    • Suzhou Prefecture
      • Huqiu District
Kecong Han and Shengyun Ma (1985): Mineral Deposits 4(2), 58-68
  • Yunnan Province
Fabre Minerals
    • Qujing Prefecture
      • Huize Co.
Dongmei Tang, Zhuangzhi Qian, Zhengjun Zhang, and Shuguang Hou (2006): Mineral Deposits 25(suppl.), 371-374
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
Raade, G. (2005): Gjerdingen-ekeritten, en unik mineralforekomst. Norsk Bergverksmuseum Skrift nr. 30, 2005, p 17
South Africa
 
  • North West Province
    • Bojanala Platinum District
      • Western Bushveld Complex
        • Brits (Brits District)
Species list by Dr. Hans Börner
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.
      • Carlin Trend
        • Maggie Creek Subdistrict
NBMG Spec. Pub. 31 Minerals of Nevada
Mineral and/or Locality  
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