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Jurbanite

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Formula:
Al(SO4)(OH) · 5H2O
System:
Monoclinic
Colour:
colourless
Hardness:
Name:
For Joseph John Urban (1915–1997), Tucson, Arizona, USA, mineral collector who first observed the natural material.
Dimorph of:
Compare also the related, orthorhombic khademite.

Classification of Jurbanite

Approved 1974
7.DB.15

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
D : Sulfates (selenates, etc.) with additional anions, with H2O
B : With only medium-sized cations; insular octahedra and finite units
31.9.10.1

31 : HYDRATED SULFATES CONTAINING HYDROXYL OR HALOGEN
9 : (AB)(XO4)Zq·xH2O
25.6.2

25 : Sulphates
6 : Sulphates of Al and Tl
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First Recorded Occurrence of Jurbanite

Year of Discovery:
1974

Physical Properties of Jurbanite

Vitreous
Diaphaneity (Transparency):
Transparent
Colour:
colourless
Hardness (Mohs):
Density:
1.786 g/cm3 (Measured)    

Crystallography of Jurbanite

Crystal System:
Monoclinic
Cell Parameters:
a = 8.39Å, b = 12.48Å, c = 8.15Å
β = 101.9°
Ratio:
a:b:c = 0.672 : 1 : 0.653
Unit Cell Volume:
V 835.02 ų (Calculated from Unit Cell)
Morphology:
Minute crystals and stalactites.

Crystallographic forms of Jurbanite

Crystal Atlas:
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Jurbanite - {110}, {011}
3d models and HTML5 code kindly provided by www.smorf.nl.

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Edge Lines | Miller Indicies | Axes

Transparency
Opaque | Translucent | Transparent

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Along a-axis | Along b-axis | Along c-axis | Start rotation | Stop rotation

Optical Data of Jurbanite

Type:
Biaxial (-)
RI values:
nα = 1.459 nβ = 1.473 nγ = 1.483
2V:
Measured: 80° , Calculated: 78°
Max Birefringence:
δ = 0.024
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
none

Chemical Properties of Jurbanite

Formula:
Al(SO4)(OH) · 5H2O
Essential elements:
All elements listed in formula:

Relationship of Jurbanite to other Species

7.DB.05AubertiteCuAl(SO4)2Cl · 14H2O
7.DB.05Magnesioaubertite(Mg,Cu)Al(SO4)2Cl · 14H2O
7.DB.05Svyazhinite(Mg,Mn2+,Ca)(Al,Fe3+)(SO4)2F · 14H2O
7.DB.10KhademiteAl(SO4)F · 5H2O
7.DB.10RostiteAl(SO4)(OH) · 5H2O
7.DB.20Minasragrite(V4+O)(SO4) · 5H2O
7.DB.20Orthominasragrite(V4+O)(SO4) · 5H2O
7.DB.20Anorthominasragrite(V4+O)(SO4) · 5H2O
7.DB.25Bobjonesite(V4+O)(SO4) · 3H2O
7.DB.30AmarantiteFe23+(SO4)2O · 7H2O
7.DB.30HohmanniteFe23+(SO4)2O · 8H2O
7.DB.30MetahohmanniteFe23+(SO4)2O · 4H2O
7.DB.35AluminocopiapiteAl2/3Fe43+(SO4)6(OH)2 · 20H2O
7.DB.35CalciocopiapiteCaFe4(SO4)6(OH)2 · 10H2O
7.DB.35CopiapiteFe2+Fe43+(SO4)6(OH)2 · 20H2O
7.DB.35CuprocopiapiteCuFe4(SO4)6(OH)2 · 20H2O
7.DB.35FerricopiapiteFe5(SO4)6O(OH) · 20H2O
7.DB.35MagnesiocopiapiteMgFe43+(SO4)6(OH)2 · 20H2O
7.DB.35ZincocopiapiteZnFe43+(SO4)6(OH)2 · 18H2O
25.6.1RostiteAl(SO4)(OH) · 5H2O
25.6.3KhademiteAl(SO4)F · 5H2O
25.6.4Meta-aluminiteAl2(SO4)(OH)4 · 5H2O
25.6.5AluminiteAl2(SO4)(OH)4 · 7H2O
25.6.6Meta-alunogenAl2(SO4)3 · 12H2O
25.6.7AlunogenAl2(SO4)3 · 17H2O
25.6.8FelsőbányaiteAl4(SO4)(OH)10 · 4H2O
25.6.9Basaluminite
25.6.10HydrobasaluminiteAl4(SO4)(OH)10 · 12-36H2O
25.6.11ZaheriteAl12(SO4)5(OH)26 · 20H2O
25.6.12TamarugiteNaAl(SO4)2 · 6H2O
25.6.13MendoziteNaAl(SO4)2 · 11H2O
25.6.14Alum-(Na)NaAl(SO4)2 · 12H2O
25.6.15NatroaluniteNaAl3(SO4)2(OH)6
25.6.16KaliniteKAl(SO4)2 · 11H2O Not confirmed
25.6.17Alum-(K)KAl(SO4)2 · 12H2O
25.6.18AluniteKAl3(SO4)2(OH)6
25.6.19Natroalunite-2c(Na,Ca0.5,K)Al3(SO4)2(OH)6
25.6.20Tschermigite(NH4)Al(SO4)2 · 12H2O

Other Names for Jurbanite

Name in Other Languages:
German:Jurbanit
Simplified Chinese:斜铝矾
Spanish:Jurbanita
Traditional Chinese:斜鋁礬

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 Jurbanite

Reference List:
Anthony, J.W. & W.J. McLean (1976), Jurbanite, a new post-mining aluminum sulfate mineral from San Manuel, AZ, American Mineralogist: 61: 1-4.

Zeitschrift für Kristallographie (1985): 173: 33.

Internet Links for Jurbanite

Localities for Jurbanite

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.
Chile
 
  • Tarapacá Region
    • El Tamarugal Province
      • Pampa del Tamarugal
Gunnar Farber
Czech Republic
 
  • Bohemia (Böhmen; Boehmen)
    • Central Bohemia Region
Zacek, V., Oplustil, S., Mayova, A. & Meyer, F. R. (1995): Die Mineralien von Kladno in Mittelböhmen, Tschechische Republik. Mineralien-Welt 6 (1), 13-30 (in German).
France
 
  • Rhône-Alpes
    • Savoie
      • Chambéry
        • Aix-les-Bains
Journal of Cave and Karst Studies, v. 69, no. 2, p. 243–249.
Italy
 
  • Tuscany
    • Siena Province
      • Chiusdino
Sabelli C. (1984) - I minerali delle Cetine di Cotorniano (SI); I solfati dimorfi jurbanite e rostite. Periodico di Mineralogia, Roma, pp. 53-65 and Brizzi G., Ciselli I, Santucci A. (1986) - Ultime novità da le Cetine di Cotorniano - Riv. Miner. Ital., Milano, fasc. 3, pp.145-155
USA
 
  • Arizona
    • Pinal Co.
      • San Manuel District
        • San Manuel
          • San Manuel Mine (Apex Lead & Vanadium Mining Corp Mine; Quarelli group)
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 264; Anthony, J.W. & W.J. McLean (1976), Jurbanite, a new post-mining aluminum sulfate mineral from San Manuel, AZ, Am.Min.: 61: 1-4.
  • Colorado
    • Clear Creek Co.
      • Geneva District
Minerals of Colorado (1997) Eckel, E. B.
  • Tennessee
    • Sevier Co.
      • Great Smoky Mountains National Park
Coskren, T. D. & Lauf, R. J. (2000): The Minerals of Alum Cave Bluff, Great Smoky Mountains, Tennessee. Mineralogical Record, 31, 163-175.; Rocks & Min. (2007) 82:235
Mineral and/or Locality  
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