Donate now to keep mindat.org alive!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 Mindat
The most common minerals on earthMineral PhotographyThe Elements and their Minerals
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
StatisticsThe ElementsMember ListBooks & MagazinesMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Jamesite

This page is currently not sponsored. Click here to sponsor this page.
Formula:
Pb2Zn(Fe2+,Zn)2Fe3+4(AsO4)4(OH)10
Colour:
Reddish brown
Lustre:
Sub-Adamantine
Hardness:
3
Crystal System:
Triclinic
Name:
Named in honor of Christopher James, mining engineer at the Tsumeb Mine.
Isostructural with:
This page provides mineralogical data about Jamesite.


Hide all sections | Show all sections

Classification of JamesiteHide

Approved
First Published:
1981
8.BK.25

8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
K : With medium-sized and large cations, (OH, etc.):RO4 = 2:1, 2.5:1
41.11.2.1

41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
11 : Miscellaneous
20.5.15

20 : Arsenates (also arsenates with phosphate, but without other anions)
5 : Arsenates of Ti and Pb

Physical Properties of JamesiteHide

Sub-Adamantine
Colour:
Reddish brown
Hardness:

Optical Data of JamesiteHide

Type:
Biaxial (-)
RI values:
nα = 1.960 nβ = 1.995 nγ = 2.020
2V:
Measured: 75° , Calculated: 78°
Max Birefringence:
δ = 0.060
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High
Dispersion:
strong

Chemical Properties of JamesiteHide

Formula:
Pb2Zn(Fe2+,Zn)2Fe3+4(AsO4)4(OH)10
IMA Formula:
Pb2ZnFe3+2(Fe3+,Zn)4(AsO4)4(OH)8(OH,O)2

Crystallography of JamesiteHide

Crystal System:
Triclinic
Cell Parameters:
a = 5.62 Å, b = 9.59 Å, c = 10.27 Å
α = 109.8°, β = 90.54°, γ = 97.69°
Ratio:
a:b:c = 0.586 : 1 : 1.071
Unit Cell V:
515.21 ų (Calculated from Unit Cell)

Type Occurrence of JamesiteHide

Place of Conservation of Type Material:
University of Stuttgart, Germany.
Smithsonian Museum, Washington.
Reference:
Keller, P., Hess, H., Dunn, P.J. (1981) Jamesite, Pb2Zn2Fe53+O4(AsO4)5, a new mineral from Tsumeb, Namibia. Chemie der Erde: 40: 105-109.

Synonyms of JamesiteHide

Other Language Names for JamesiteHide

German:Jamesit
Spanish:Jamesita

Common AssociatesHide

Associated Minerals Based on Photo Data:
Siderite5 photos of Jamesite associated with Siderite on mindat.org.
Beudantite5 photos of Jamesite associated with Beudantite on mindat.org.
Duftite4 photos of Jamesite associated with Duftite on mindat.org.
Goethite2 photos of Jamesite associated with Goethite on mindat.org.
Dolomite1 photo of Jamesite associated with Dolomite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

8.BK.05BrazilianiteNaAl3(PO4)2(OH)4Mon. 2/m : P2/b
8.BK.10MedenbachiteBi2Fe3+Cu2+(AsO4)2O(OH)3Tric. 1 : P1
8.BK.10NeustädteliteBi2Fe3+(Fe3+,Co)(AsO4)2(O,OH)4Tric. 1 : P1
8.BK.10CobaltneustädteliteBi2Fe3+(Co,Fe3+)(AsO4)2(O,OH)4Tric. 1 : P1
8.BK.15CuretoniteBa(Al,Ti)(PO4)(OH,O)FMon. 2/m
8.BK.20HeyitePb5Fe2+2(VO4)2O4Mon.
8.BK.25LulzaciteSr2Fe2+(Fe2+,Mg)2Al4(PO4)4(OH)10Tric. 1 : P1

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

20.5.1CafarsiteCa5.9Mn1.7Fe3Ti3(AsO3)12 · 4-5H2OIso. m3 (2/m 3) : Pn3
20.5.2SchultenitePb(HAsO4)Mon. 2/m : P2/b
20.5.3DuftitePbCu(AsO4)(OH)Orth. 2 2 2 : P21 21 21
20.5.4BayldonitePbCu3(AsO4)2(OH)2Mon. 2/m : B2/b
20.5.5PhilipsbornitePbAl3(AsO4)2(OH)5 · H2OTrig.
20.5.6ArsendescloizitePbZn(AsO4)(OH)Orth. 2 2 2 : P21 21 21
20.5.7HelmutwinkleritePb(Zn,Cu)2(AsO4)2 · 2H2OTric.
20.5.8ThometzekitePb(Cu,Zn)2(AsO4,SO4)2 · 2(H2O,OH)Mon. 2/m : B2/m
20.5.9Caryinite(Na,Pb)(Ca,Na)CaMn2+2(AsO4)3Mon. 2/m
20.5.10LudlockitePbFe3+4As3+10O22Tric. 1 : P1
20.5.11GabrielsonitePbFe(AsO4)(OH)Orth. mm2 : Pmc21
20.5.12CarminitePbFe3+2(AsO4)2(OH)2Orth. mmm (2/m 2/m 2/m) : Cccm
20.5.13SegnititePbFe3+3(AsO4)2(OH,H2O)6Trig. 3m (3 2/m) : R3m
20.5.14TsumcoritePbZn2(AsO4)2 · 2H2OMon.
20.5.16MawbyitePb(Fe3+,Zn)2(AsO4)2 · 2(OH,H2O)Mon.
20.5.17ArsenbrackenbuschitePb2Fe3+(AsO4)2(OH)

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 JamesiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Keller, P., Hess, H., Dunn, P.J. (1981) Jamesite, Pb2Zn2Fe53+O4(AsO4)5, a new mineral from Tsumeb, Namibia. Chemie der Erde: 40: 105-109.
Fleischer, M., Cabri, L.J. (1981) New mineral names. American Mineralogist: 66: 1274-1280.
Cooper, M.A., Hawthorne, F.C. (1999) Local Pb2+-◻ disorder in the crystal structure of jamesite, Pb2ZnFe3+2(Fe3+2.8Zn1.2)(AsO4)4(OH)8[(OH)1.2O0.8], and revision of the chemical formula. Canadian Mineralogist: 37: 53-60.
Jambor, J.L., Roberts, A.C. (2000) New mineral names. American Mineralogist: 85: 263-266.

Internet Links for JamesiteHide

Localities for JamesiteHide

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.
Bulgaria
 
  • Vratsa Oblast (Vratza)
    • Balkan Mts (Stara Planina)
Minceva-Stefanova, J. (2001). Arsenate minerals diversity in oxidation zones of the polymetallic stratabound deposits in Western Balkan Mountain. Comptes Rendus de l'Academie Bulgare des Sciences, 54(6), 39.
Greece
 
  • Attikí Prefecture (Attica; Attika)
    • Lavrion District (Laurion; Laurium)
      • Lavrion District Mines
        • Agios Konstantinos [St Constantine] (Kamariza)
          • Kamariza Mines (Kamareza Mines)
No reference listed
Lapis No.7/8 1999 p.70-74
Namibia (TL)
 
  • Otjikoto Region (Oshikoto)
    • Tsumeb
Chemie der Erde,(1981) 40, 105-109; Gebhard, G. (1999): Tsumeb II. A Unique Mineral Locality. GG Publishing, Grossenseifen, Germany
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 1993-2017, 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: December 15, 2017 17:56:48 Page generated: November 7, 2017 03:46:40
Go to top of page