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About OrceliteHide

Jean Orcel
Ni5-xAs2, x ~ 0.25
Specific Gravity:
6.5 - 7.25
Crystal System:
Named in 1959 by S. J. Caillère, J. Avias, and J. Falgueirettes in honour of Professor Jean Orcel (1896–1978), French mineralogist, curator of Muséum National d'Histoire Naturelle, Paris, France.
This page provides mineralogical data about Orcelite.

Classification of OrceliteHide


2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
A : Alloys
B : Ni-metalloid alloys

3 : AmBnXp, with (m+n):p = 5:2

3 : Sulphides, Selenides, Tellurides, Arsenides and Bismuthides (except the arsenides, antimonides and bismuthides of Cu, Ag and Au, which are included in Section 1)
11 : Sulphides etc. of Ni

Physical Properties of OrceliteHide

"browner than nickeline"
None Observed
6.5 - 7.25 g/cm3 (Measured)    8.44 g/cm3 (Calculated)

Optical Data of OrceliteHide


Chemical Properties of OrceliteHide

Ni5-xAs2, x ~ 0.25
IMA Formula:
Ni5-xAs2 (x = 0.23)
Common Impurities:

Crystallography of OrceliteHide

Crystal System:
Class (H-M):
6mm - Dihexagonal Pyramidal
Space Group:
Cell Parameters:
a = 6.7922(2) Å, c = 12.4975(5) Å
a:c = 1 : 1.84
Unit Cell V:
499.31 ų
Inclusions in pentlandite

X-Ray Powder DiffractionHide

Powder Diffraction Data:
3.25 (20)
3.09 (20)
2.945 (40)
2.706 (40)
2.257 (10)
2.137 (60)
1.987 (100)
1.933 (100)
1.831 (10)
1.757 (60)
1.641 (20)
1.385 (20)
1.302 (20)
ICDD 35-493; obsolete cards ICDD 10-219, ICDD 13-333

Type Occurrence of OrceliteHide

General Appearance of Type Material:
As inclusions in pentlandite and as rims on maucherite.
Geological Setting of Type Material:
In serpentinized harzburgite.
Associated Minerals at Type Locality:

Other Language Names for OrceliteHide

Simplified Chinese:六方砷镍矿

Common AssociatesHide

Associated Minerals Based on Photo Data:
Awaruite6 photos of Orcelite associated with Awaruite on mindat.org.
Serpentine Subgroup6 photos of Orcelite associated with Serpentine Subgroup on mindat.org.
Andradite5 photos of Orcelite associated with Andradite on mindat.org.
Zaratite1 photo of Orcelite associated with Zaratite on mindat.org.
Chromian Clinochlore1 photo of Orcelite associated with Chromian Clinochlore on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

2.AB.15MaucheriteNi11As8Tet. 4 2 2 : P41 21 2

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

3.11.1HeazlewooditeNi3S2Trig. 3 2 : R3 2
3.11.2Godlevskite(Ni,Fe)9S8Orth. 2 2 2 : C2 2 2
3.11.3MilleriteNiSTrig. 3m : R3m
3.11.5VaesiteNiS2Iso. m3 (2/m 3) : Pa3
3.11.7DonharrisiteNi3HgS3Mon. 2/m : B2/m
3.11.9Pentlandite(FexNiy)Σ9S8Iso. m3m (4/m 3 2/m) : Fm3m
3.11.10Bravoite(Fe,Ni)S2Iso. m3 (2/m 3) : Pa3
3.11.11SiegeniteCoNi2S4Iso. m3m (4/m 3 2/m) : Fd3m
3.11.12FletcheriteCu(Ni,Co)2S4Iso. m3m (4/m 3 2/m) : Fd3m
3.11.15Sederholmitebeta-NiSeHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
3.11.18KulleruditeNiSe2Orth. mmm (2/m 2/m 2/m) : Pnnm
3.11.19Penroseite(Ni,Co,Cu)Se2Iso. m3 (2/m 3) : Pa3
3.11.20TyrrelliteCu(Co3+,Ni3+)2Se4Iso. m3m (4/m 3 2/m) : Fd3m
3.11.21ImgreiteNiTe (?)Hex.
3.11.22MeloniteNiTe2Trig. 3m (3 2/m) : P3m1
3.11.23KitkaiteNiTeSeTrig. 3m (3 2/m) : P3m1
3.11.26MaucheriteNi11As8Tet. 4 2 2 : P41 21 2
3.11.27NickelineNiAsHex. 6/mmm (6/m 2/m 2/m) : P63/mcm
3.11.28RammelsbergiteNiAs2Orth. mmm (2/m 2/m 2/m) : Pnnm
3.11.30Nickelskutterudite(Ni,Co,Fe)As3Iso. m3 (2/m 3) : Im3
3.11.33Langisite(Co,Ni)AsHex. 6 : P63
3.11.34GersdorffiteNiAsSIso. m3 (2/m 3) : Pa3
3.11.35JolliffeiteNiAsSeIso. m3 (2/m 3) : Pa3
3.11.36BreithauptiteNiSbHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
3.11.38UllmanniteNiSbSIso. 2 3 : P21 3

Fluorescence of OrceliteHide

Not fluorescent in UV

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 OrceliteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
American Mineralogist (1960): 45: 753-754.
Oen, I, et al. (1980) Bulletin Mineralogie, 103:198.
Canadian Mineralogist (1984): 22: 553.
L. Bindi, M. Tredoux, F. Zaccarini, D. E. Miller, G. Garuti (2014): Non-stoichiometric nickel arsenides in nature: the structure of orcelite, Ni5-xAs2 (x = 0.25), from the Bon Accord oxide body, South Africa. Journal of Alloys and Compounds, 601, 175-178.

Internet Links for OrceliteHide

Localities for OrceliteHide

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.
  • Tasmania
    • West Coast municipality
      • Zeehan district
Ralph Bottrill
Ralph Bottrill collection
  • Styria
    • Leoben
      • St Stefan ob Leoben
        • Mitterberg
Kollegger, P., Mogessie, A. & Mali, H. (2008): Geochemie und Vererzung im Kraubath-Massiv, südöstlich von Kraubath an der Mur, Steiermark, Österreich. Joannea Mineralogie 4, 53-97.
  • Kardzhali Oblast (Kurdzhali; Kărdžali; Kurdjali)
    • Kirkovo Obshtina
Kerestedjian, T. et al. (2007): Godlevskite Ni9S8 from Dobromirtsi, Central Rhodopes, Bulgaria: First report for the country and genetic implications. Geochemistry, Mineralogy and Petrology 45, 19-28. (in Bulgarian with English abs.)
  • Newfoundland and Labrador
    • Newfoundland
Canadian Mineralogist (1984): 22: 553.
  • Ontario
    • Timiskaming District
      • Cobalt-Gowganda region
        • Cobalt area
          • Coleman Township
  • Greenland
    • Sermersooq
Nielsen, T. F., Andersen, J. Ø., Holness, M. B., Keiding, J. K., Rudashevsky, N. S., Rudashevsky, V. N., ... & Veksler, I. V. (2015). The Skaergaard PGE and gold deposit: the result of in situ fractionation, sulphide saturation, and magma chamber-scale precious metal redistribution by immiscible Fe-rich melt. Journal of Petrology, 56(8), 1643-1676.
  • Kainuu
    • Suomussalmi
Pakkanen, L. & Luukkonen, E. (1995): Native nickel and copper in the Kauniinvaara ultramafic body of the late archean Suomussalmi greenstone belt, eastern Finland. in: Autio, S. (toim.) Geological Survey of Finland, current Research 1993-1994. Geologian Tutkimuskeskus Special Paper 20, 23-29.
France (TL)
  • New Caledonia
    • Northern Province
      • Koumac Commune
        • Tiébaghi Massif
[Clark, 1993 - "Hey's Mineral Index"]; Caillère S, Avias J, Falgueirettes J (1959) Découverte en Nouvelle-Calédonie d'une minéralisation arsenicale sous forme d'un nouvel arséniure de nickel Ni2As, Comptes Rendus Hebdomadaires des Séances de l’Académie des Sciences 249, 1771-1773
  • Lower Saxony
    • Harz
      • Lautenthal
        • Wolfshagen
No reference listed
  • West Macedonia
    • Kozani and Grevena border area
      • Vourinos Mt ophiolite complex
Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990
  • Odisha (Orissa)
Canadian Mineralogist 40:277-309
Augé, T., Bailly, L., Cocherie, A., Genna, A., Guerrot, C., Lerouge, C., ... & Patra, R. N. (2002, July). Magmatic and Hydrothermal Platinum-Group Element Mineralization in the Baula Area, Orissa, India. In Proceedings of the 9th International Platinum Symposium (pp. 21-24).
  • Lombardy
    • Sondrio Province
      • Valtellina
AA. VV., 1996. Collezionare minerali. Hobby & Work
  • Dzavhan Aimag (Zavkhan Aimag)
    • Khan-Taishirin-Ula range
  • Chelyabinsk Oblast
    • Karabash (Karabasch)
      • Soimon Valley
Gritsenko, Y.D., and Spiridonov, E.M. (2008): Geology of Ore Deposits 50(7), 590-598.; Murzin, V. V., Chudnenko, K. V., Palyanova, G. A., Varlamov, D. A., Naumov, E. A., & Pirajno, F. (2018). Physicochemical model for the genesis of Cu-Ag-Au-Hg solid solutions and intermetallics in the rodingites of the Zolotaya Gora gold deposit (Urals, Russia). Ore Geology Reviews, 93, 81-97.
  • Irkutsk Oblast
    • Uda–Biryusa district
Shvedov, G. I., & Barkov, A. Y. (2017). Primary and alteration assemblages of platinum-group minerals from the Ognit complex, Irkutskaya oblast, Eastern Sayans, Russia. Neues Jahrbuch für Mineralogie-Abhandlungen: Journal of Mineralogy and Geochemistry, 194(1), 35-48.; Mekhonoshin, A. S., Tolstykh, N. D., Podlipsky, M. Y., Kolotilina, T. B., Vishnevsky, A. V., & Benedyuk, Y. P. (2013). PGE mineralization of dunite-wehrlite massifs at the Gutara-Uda interfluve, Eastern Sayan. Geology of Ore Deposits, 55(3), 162-175.
  • Kamchatka Krai
    • Korf
Kozlov, A. P., Chanturiya, V. A., Sidorov, E. G., Tolstykh, N. D., & Telegin, Y. M. (2011). Large-volume platinum ore deposits in zonal mafic-ultramafic complexes of the Ural-Alaskan type and the outlook for their development. Geology of ore deposits, 53(5), 374.
  • Krasnoyarsk Krai
    • Taymyrskiy Autonomous Okrug
      • Taimyr Peninsula
        • Putoran Plateau
(2014) 12th International Platinum Symposium p320
  • Murmansk Oblast
    • Monche-Tundra
      • Monchegorsk
Grokhovskaya, T.L., Griboedova, I.G. & Karimova, O.V. (2014) Diversity of PGM Assemblages in Pge Deposits of the Monchegorsk Igneous Complex, Russia. 12th International Platinum Symposium p249
South Africa
  • Mpumalanga
    • Lydenburg
Rudashevsky, N.S., Avdontsev, S.N., Dneprovskaya, M.B. (1992): Evolution of PGE mineralization in hortonolitic dunites of the Mooihoek and Onverwacht pipes, Bushveld Complex. Mineral. Petrol.: 47: 37-54; in: Jambor, J.L., Puziewicz, J. (1993): New mineral Names. American Mineralogist: 78: 1111
  • Andalusia
    • Málaga
      • Mijas
[Clark, 1993 - "Hey's Mineral Index"]; Econ Geol (1990) 85:112-132
Gervilla, F., Gutiérrez-Narbona, R., & Fenoll-Hach-Alí, P. (2002). The origin of different types of magmatic mineralizations from small-volume melts in the lherzolite massifs of the Serranía de Ronda. Boletín de la Sociedad Espanola de Mineralogía, 25, 79-96.
      • Sierra Alpujata
I. S. Oen, C. Kieft, E.A.J. Burke, A.B. Westerhof : "Orcelite and associated minerals in the Ni-Fe-As-S system in chromitites and orthopyroxenites of Nebral, Malaga, Spain", Bull. Minéral., 1980, 103, 198-208
  • Jämtland
    • Östersund
Jan Olov Nyström, Frans E. Wickman (1991) The Ordovician chondrite from Brunflo, central Sweden, II. Secondary minerals. Lithos 27:167-185
  • Central Anatolia Region
    • Eskişehir Province
      • Eskişehir ophiolite
Uysal, I.; Zaccarini, F.; Sadiklar, M. B.; Tarkian, M.; Thalhammer, O. A. R.; Garuti, G. (2009): The podiform chromitites in the Dağküplü and Kavak mines, Eskişehir ophiolite (NW-Turkey): genetic implications of mineralogic and geochemical data. Geologica Acta 7, 351-362. [http://redalyc.uaemex.mx/pdf/505/50513114004.pdf]
Uysal, I.; Zaccarini, F.; Sadiklar, M. B.; Tarkian, M.; Thalhammer, O. A. R.; Garuti, G. (2009): The podiform chromitites in the Dağküplü and Kavak mines, Eskişehir ophiolite (NW-Turkey): genetic implications of mineralogic and geochemical data. Geologica Acta 7, 351-362. [http://redalyc.uaemex.mx/pdf/505/50513114004.pdf]
  • Scotland
    • Shetland Islands
      • Unst
BGS - Minerals of Britain; Nickel and Platinum (2000), page 4
  • Oregon
    • Josephine Co.
      • Josephine Creek District
Pavel M. Kartashov analytical data (1992)
  • Pennsylvania
    • Lancaster Co.
      • State Line Chromite District
Smith and Barnes (2011) Pennsylvania Geology Fall/Winter 2011; Smith and Barnes (2011) Pennsylvania Geology v. 41, no. 3/4.
Mineral and/or Locality  
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