Help mindat.org|Log In|Register|
Home PageMindat NewsThe Mindat ManualHistory of MindatCopyright StatusManagement TeamContact UsAdvertise on Mindat
Donate to MindatSponsor a PageSponsored PagesTop Available PagesMindat AdvertisersAdvertise on MindatThe Mindat Store
Minerals by PropertiesMinerals by ChemistryRandom MineralSearch by minIDLocalities Near MeSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportAdd Glossary Item
StatisticsMember ListBooks & MagazinesMineral Shows & EventsThe Mindat DirectoryHow to Link to MindatDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Plumbojarosite

This page is currently not sponsored. Click here to sponsor this page.
Formula:
Pb0.5Fe33+(SO4)2(OH)6
System:
Trigonal
Colour:
Golden-brown to ...
Hardness:
1½ - 2
Name:
Named in 1902 for its composition with dominant lead (Latin = PLUMBum) and its relationship to JAROSITE.
Found as golden brown to dark brown crusts or masses composed of microscopic hexagonal plates; rarely as small crystals of variable morphologies (in slags blackish crystals often occur). May also be powdery, earthy, or ochreous.

May be confused with jarosite, natrojarosite, beudantite, corkite, beaverite-(Cu) and other members of the Alunite Supergroup.

Classification of Plumbojarosite

Approved
6/B.11-100
7.BC.10

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
B : Sulfates (selenates, etc.) with additional anions, without H2O
C : With medium-sized and large cations
Dana 7th ed.:
30.2.5.6
30.2.5.6

30 : ANHYDROUS SULFATES CONTAINING HYDROXYL OR HALOGEN
2 : (AB)2(XO4)Zq
25.7.13

25 : Sulphates
7 : Sulphates of Pb
mindat.org URL:
http://www.mindat.org/min-3248.html
Please feel free to link to this page.

Type Occurrence of Plumbojarosite

Year of Discovery:
1902

Occurrences of Plumbojarosite

Geological Setting:
A secondary mineral found in the oxidized zones of lead mineral deposits, particularly in arid regions.

Physical Properties of Plumbojarosite

Silky, Dull
Diaphaneity (Transparency):
Translucent, Opaque
Comment:
May be glistening.
Colour:
Golden-brown to dark-brown, dark brown-red, blackish
Streak:
Pale yellow
Hardness (Mohs):
1½ - 2
Hardness Data:
Measured
Tenacity:
Fragile
Cleavage:
Imperfect/Fair
Fair on {10_14}.
Fracture:
Micaceous
Density:
3.665 g/cm3 (Measured)    3.71 g/cm3 (Calculated)

Crystallography of Plumbojarosite

Crystal System:
Trigonal
Class (H-M):
3m (3 2/m) - Hexagonal Scalenohedral
Space Group:
R3m
Cell Parameters:
a = 7.305Å, c = 33.675Å
Ratio:
a:c = 1 : 4.61
Unit Cell Volume:
V 1,556.25 ų (Calculated from Unit Cell)
Z:
3
Morphology:
crusts, lumps or compact masses composed of microscopic hexagonal plates; may be pulverant, earthy, or ocherous.

The presence of Pb2+ results in the "c" axis of the hexagonal cell being doubled in comparison to jarosite, with half the Pb sites vacant in an orderly arrangement; and this also results in other minor compensating differences from the jarosite structure.
Comment:
c may be halved due to impurity contents
X-Ray Powder Diffraction Data:
d-spacingIntensity
3.06(100)
2.81(50)
2.53(30)
2.25(80)
1.975(30)
1.827(30)
1.532(30)
1.487(40)

Optical Data of Plumbojarosite

Type:
Uniaxial (-)
RI values:
nω = 1.878 nε = 1.783
Max Birefringence:
δ = 0.095
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Very High
Comments:
Dichroic:
O = Yellow-brown
E = Nearly colourless

Chemical Properties of Plumbojarosite

Formula:
Pb0.5Fe33+(SO4)2(OH)6
Essential elements:
All elements listed in formula:

Relationship of Plumbojarosite to other Species

Other Members of Group:
AluniteKAl3(SO4)2(OH)6
Ammonioalunite(NH4)Al3(SO4)2(OH)6
Ammoniojarosite(NH4)Fe33+(SO4)2(OH)6
ArgentojarositeAgFe33+(SO4)2(OH)6
Beaverite-(Cu)Pb(Fe3+,Cu)3(SO4)2(OH)6
Beaverite-(Zn)Pb(Fe23+Zn)(SO4)2(OH)6
DorallchariteTlFe33+(SO4)2(OH)6
HuangiteCa0.5Al3(SO4)2(OH)6
Hydroniumjarosite(H3O)Fe33+(SO4)2(OH)6
JarositeKFe3+ 3(SO4)2(OH)6
NatroaluniteNaAl3(SO4)2(OH)6
Natroalunite-2c(Na,Ca0.5,K)Al3(SO4)2(OH)6
NatrojarositeNaFe3(SO4)2(OH)6
OsarizawaitePb(Al,Cu)3(SO4)2(OH)6
Schlossmacherite(H3O)Al3(SO4)2(OH)6
WalthieriteBa0.5Al3(SO4)2(OH)6
7.BC.05D'AnsiteNa21Mg(SO4)10Cl3
7.BC.10AluniteKAl3(SO4)2(OH)6
7.BC.10Ammonioalunite(NH4)Al3(SO4)2(OH)6
7.BC.10Ammoniojarosite(NH4)Fe33+(SO4)2(OH)6
7.BC.10ArgentojarositeAgFe33+(SO4)2(OH)6
7.BC.10Beaverite-(Cu)Pb(Fe3+,Cu)3(SO4)2(OH)6
7.BC.10DorallchariteTlFe33+(SO4)2(OH)6
7.BC.10HuangiteCa0.5Al3(SO4)2(OH)6
7.BC.10Hydroniumjarosite(H3O)Fe33+(SO4)2(OH)6
7.BC.10JarositeKFe3+ 3(SO4)2(OH)6
7.BC.10Natroalunite-2c(Na,Ca0.5,K)Al3(SO4)2(OH)6
7.BC.10NatroaluniteNaAl3(SO4)2(OH)6
7.BC.10NatrojarositeNaFe3(SO4)2(OH)6
7.BC.10OsarizawaitePb(Al,Cu)3(SO4)2(OH)6
7.BC.10Schlossmacherite(H3O)Al3(SO4)2(OH)6
7.BC.10WalthieriteBa0.5Al3(SO4)2(OH)6
7.BC.10Beaverite-(Zn)Pb(Fe23+Zn)(SO4)2(OH)6
7.BC.15Ye'elimiteCa4Al6(SO4)O12
7.BC.20AtlasoviteK(BiO)Cu6Fe3+(SO4)5O3Cl
7.BC.20NabokoiteKCu7(SO4)5(Te4+O3)OCl
7.BC.25ChlorothioniteK2Cu(SO4)Cl2
7.BC.30EuchlorineKNaCu3(SO4)3O
7.BC.30FedotoviteK2Cu3(SO4)3O
7.BC.35KamchatkiteKCu3(SO4)2OCl
7.BC.40PiypiteK2Cu2(SO4)2O
7.BC.45KlyuchevskiteK3Cu3(Fe3+,Al)(SO4)4O2
7.BC.45AlumoklyuchevskiteK3Cu3(Al,Fe3+)(SO4)4O2
7.BC.50CaledonitePb5Cu2(SO4)3(CO3)(OH)6
7.BC.55WherryitePb7Cu2(SO4)4(SiO4)2(OH)2
7.BC.60MammothitePb6Cu4AlSb5+O2(OH)16Cl4(SO4)2
7.BC.65LinaritePbCu(SO4)(OH)2
7.BC.65SchmiederitePb2Cu2(Se6+O4)(Se4+O3)(OH)4
7.BC.65MunakataitePb2Cu2(Se4+O3)(SO4)(OH)4
7.BC.70ChenitePb4Cu(SO4)2(OH)6
7.BC.75KrivovichevitePb3Al(SO4)(OH)7
7.BC.80AnhydrokainiteKMg(SO4)Cl
25.7.1SchaurteiteCa3Ge(SO4)2(OH)6 · 4H2O
25.7.2Zircosulfate(Zr,Ti)(SO4)2 · 4H2O
25.7.3AnglesitePbSO4
25.7.4LanarkitePb2(SO4)O
25.7.5Palmierite(K,Na)2Pb(SO4)2
25.7.6LinaritePbCu(SO4)(OH)2
25.7.7ElyitePb4Cu(SO4)O2(OH)4 · H2O
25.7.8ChenitePb4Cu(SO4)2(OH)6
25.7.9OsarizawaitePb(Al,Cu)3(SO4)2(OH)6
25.7.10ItoitePb3Ge4+(SO4)2O2(OH)2
25.7.11FleischeritePb3Ge(SO4)2(OH)6 · 3H2O
25.7.12Beaverite-(Cu)Pb(Fe3+,Cu)3(SO4)2(OH)6
30.2.5.1JarositeKFe3+ 3(SO4)2(OH)6
30.2.5.3Hydroniumjarosite(H3O)Fe33+(SO4)2(OH)6
30.2.5.5ArgentojarositeAgFe33+(SO4)2(OH)6

Other Names for Plumbojarosite

Name in Other Languages:
Simplified Chinese:铅铁矾
黄铅铁矾
Traditional Chinese:鉛鐵礬
黃鉛鐵礬

Other Information

Other Information:
Very slowly soluble in acids.
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 Plumbojarosite

Reference List:
Hillebrand and Penfield (1902) American Journal of Science: 14: 211.

Hillebrand and Wright (1910) American Journal of Science: 30: 191.

Butler and Schaller (1911) American Journal of Science: 32: 422.

Knopf (1915) Journal of the Washington Academy of Sciences: 5: 497 (as Vegasite).

Larsen, E.S. (1921) The Microscopic Determination of the Nonopaque Minerals, First edition, USGS Bulletin 679: 121.

Hendricks (1937) American Mineralogist: 22: 773.

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.: 568-570.

Mumme, W. and Scott, T. (1966): The relationships between basic ferric sulfate and plumbojarosite. Am. Mineral. 51, 443-453.

Canadian Mineralogist (1985): 23: 659-668.

Gaines, Richard V., H. Catherine, W. Skinner, Eugene E. Foord, Brian Mason, Abraham Rosenzweig (1997), Dana's New Mineralogy : The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana: 635.

Mills, S. J., Madsen, I. C., Grey, I. E. & Birch, W. D. (2009) In situ XRD study of the thermal decomposition of arsenian plumbojarosite. Canadian Mineralogist, 47(3), 683–696.

Basciano, L. C. & Peterson, R. C. (2010): A crystallographic study of the incomplete solid solution betweeen plumbojarosite and jarosite. Can. Mineral. 48, 651-659.

Madsen, I. C., Grey, I. E. & Mills, S. J. (2010): In situ diffraction studies: Thermal decomposition of a natural plumbojarosite and the development of Rietveld-based data analysis techniques. Materials Science Forum, 651, 37-64.

Internet Links for Plumbojarosite

Localities for Plumbojarosite

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  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2015, except where stated. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: July 4, 2015 04:37:28 Page generated: June 30, 2015 15:26:57