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Oldhamite

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Dąbrowka Wielka, Siemianowice Śląskie, Katowice area, Upper Silesian Coal Basin, Upper Silesia (Śląskie), Poland
© L Kruszewski 2006

Formula:
(Ca,Mg)S
System:IsometricColour:pale brown to dark brown
Hardness:4
Name:Named after T. Oldham (1816-1878), Director of the Indian Geological Survey (1850-1876).


Galena Group.

Classification of Oldhamite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:2/C.15-20
Nickel-Strunz 10th (pending) edition ID:2.CD.10

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
C : Metal Sulfides, M: S = 1: 1 (and similar)
D : With Sn, Pb, Hg, etc.
Hey's CIM Ref.:3.4.2

3 : Sulphides, Selenides, Tellurides, Arsenides and Bismuthides (except the arsenides, antimonides and bismuthides of Cu, Ag and Au, which are included in Section 1)
4 : Sulphides etc. of Group II metals other than Hg (Mg, Ca, Zn, Cd)
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Type Occurrence of Oldhamite

Type Locality:The Bustee meteorite, Gorakhpur, Basti District, Basti Division, Uttar Pradesh, India
Year of Discovery:1862

Physical Properties of Oldhamite

Colour:pale brown to dark brown
Hardness (Mohs):4
Cleavage:Distinct/Good

Crystallography of Oldhamite

Crystal System:Isometric
Cell Parameters:a = 5.69Å
Unit Cell Volume:V 184.22 ų (Calculated from Unit Cell)

Chemical Properties of Oldhamite

Formula:
(Ca,Mg)S
Essential elements:Ca, S
All elements listed in formula:Ca, Mg, S
Common Impurities:Mg,Na,Fe,Cu

Relationship of Oldhamite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
2.CD.05Herzenbergite
(Sn,Pb)SnS
 
2
2.CD.05Teallite
(Pb,Sn)SnS
 
2
2.CD.10Alabandite
Mn
2+
 
S
2.CD.10Altaite
PbTe
2.CD.10Clausthalite
PbSe
2.CD.10Galena
PbS
2.CD.10Niningerite
(Mg,Fe
2+
 
,Mn
2+
 
)S
2.CD.10Keilite
(Fe
2+
 
,Mg)S
2.CD.15aCinnabar
HgS
2.CD.15bHypercinnabar
HgS
Related Minerals - Hey's Index Grouping:

- +
3.4.1Niningerite
(Mg,Fe
2+
 
,Mn
2+
 
)S
3.4.3Mátraite
ZnS
3.4.4Sphalerite
(Zn,Fe
2+
 
)S
3.4.5Wurtzite
(Zn,Fe)S
3.4.6Stilleite
ZnSe
3.4.7Greenockite
CdS
3.4.8Hawleyite
CdS
3.4.9Cadmoselite
CdSe

Other Names for Oldhamite

Other Languages:
German:Oldhamit
Russian:Ольдгамит
Spanish:Oldhamita

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 Oldhamite

Reference List:Maskelyne (1862), Phil. Trans. (1870): 160: 195.

Palache, Charles, Harry Berman & Clifford Frondel (1944), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Volume I: Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, Inc., New York. 7th edition, revised and enlarged, 834pp.: 208-209.

Mineralogical Magazine: 37: 144-145.

Lapis (1998): 23: 7-8, 32.

Internet Links for Oldhamite

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    Localities for Oldhamite

    Hide Locality List
    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.
    (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.
    Antarctica
     
    • Eastern Antarctica
      • Victoria Land
        • Allan Hills
    		bersite, troilite, daubreelite, and djerfisherite
    Azerbaijan
     
    • Naxçıvan (Naxcivan; Nakhichevan) District
      • Shusha
    		http://rruff.geo.arizona.edu/doclib/hom/roedderite.pdf.; American Mineralogist, Volume 93, pages 902–909, 2008
    Canada
     
    • Alberta
      • Abee
    Estonia
     
    • Viljandi Co.
      • Vohma
        • Pillistfer
    France
     
    • Midi-Pyrénées
      • Aveyron
    		Eytier J.R. & Ch., Favreau G., Devouard B., Vigier J. (2004), Minéraux de pyrométamorphisme de Lapanouse-de Sévérac (Aveyron), Cahier des Micromonteurs, n°3, pp: 3-58
    Germany
     
    • Bavaria
      • Swabia
        • Allgäu
          • Füssen
    		G. Simon et al. : "The Meteorite Neuschwanstein", 5th International Conference "Mineralogy & Museums", Paris, Sept. 5-8th 2004, Bull. de Liaison de la Soc. Franç. de Minéralogie et Cristallographie, 2004, Vol 16, N°2.
    • Thuringia
      • Gera
        • Ronneburg U deposit
    		T. Witzke & F. Rüger: Lapis 1998(7/8), 26-64
    India
     
    • Uttar Pradesh
      • Basti Division
        • Basti District
          • Gorakhpur
    		Min Mag 37 (1969), 144
    Poland
     
    • Lubelskie
      • Zamosc
    		The Meteoritical Bulletin, No. 84, (August, 2000)
    • Upper Silesia (Śląskie)
      • Upper Silesian Coal Basin
        • Katowice area
          • Siemianowice Śląskie
    		Kruszewski L. 2006: Oldhamite-periclase-portlandite-fluorite assemblage and coexisting minerals of burnt dump in Siemianowice Śląskie - Dąbrówka Wielka area (Upper Silesia, Poland) - preliminary report. Mineralogia Polonica Special Papers, vol.28, 118-120
    Russia
     
    • Urals Region
      • Southern Urals
        • Chelyabinsk Oblast'
          • Chelyabinsk coal basin
            • Korkino
    		Am Min 90:1556-1562; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
          • Magnitka
    Sudan
     
    • Kassala
      • Gash delta
    		 Hey, M. H. & Easton, A. J. in Geochimica et Cosmochimica Acta 31(10):1789-1790 (1967)
    USA
     
    • Kansas
      • Norton Co.
    		Lunar and Planetary Science XXXII (2001)
    • Texas
      • Lubbock Co.
    		Meteoritics (ISSN 0026-1114), vol. 24, Dec. 1989, p. 195-208.; Geochimica et Cosmochimica Acta (1989), 53(12), 3291-307
    Western Sahara
     
    • Saguia el Hamra
    		Patzer, A. et al. (2001) Meteoritics and Planetary Science 36, 1495-1505
    Yemen
     
    • South Yemen
    		Meteoritics & Planetary Science 39,53-60(2004); Zolensky, M. & A.Ivanov, Chemie der Erde 63,185-246(2003)
    Mineral and/or Locality
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