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Löllingite

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Formula:
FeAs2
Colour:
Steel gray to silver white
Lustre:
Metallic
Hardness:
5 - 5½
Specific Gravity:
7.43
Crystal System:
Orthorhombic
Name:
Named in 1845 by Wilhelm Karl von Haidinger for the type locality at the Wolfbau Mine, Lölling District, Hüttenberger Erzberg, Hüttenberg, Friesach - Hüttenberg area, Carinthia, Austria.
Löllingite Group.

Forms a series with safflorite and can also contain considerable amounts of nickel (solid solution with rammelsbergite).

May be confused with arsenopyrite.



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Classification of LöllingiteHide

Approved, 'Grandfathered' (first described prior to 1959)
2.EB.15a

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
E : Metal Sulfides, M: S <= 1:2
B : M:S = 1:2, with Fe, Co, Ni, PGE, etc.
2.12.2.9

2 : SULFIDES
12 : AmBnXp, with (m+n):p = 1:2
3.9.11

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

Pronounciation of LöllingiteHide

Pronounciation:
PlayRecorded byCountry
Jolyon & Katya RalphUnited Kingdom

Physical Properties of LöllingiteHide

Metallic
Transparency:
Opaque
Colour:
Steel gray to silver white
Streak:
Greyish black
Hardness:
5 - 5½ on Mohs scale
Hardness:
VHN100=859 - 920 kg/mm2 - Vickers
Cleavage:
Distinct/Good
Distinct on {010}{101}
Density:
7.43 g/cm3 (Measured)    7.472 g/cm3 (Calculated)

Optical Data of LöllingiteHide

Type:
Anisotropic
Anisotropism:
Strong

Chemical Properties of LöllingiteHide

Formula:
FeAs2
Common Impurities:
Bi

Crystallography of LöllingiteHide

Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:
Pnnm
Cell Parameters:
a = 5.300 Å, b = 5.983 Å, c = 2.882 Å
Ratio:
a:b:c = 0.886 : 1 : 0.482
Unit Cell V:
91.39 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Prismatic
Twinning:
On {001}, possibly trillings, polysynthetic on {101}

Crystallographic forms of LöllingiteHide

Crystal Atlas:
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Löllingite - {110}, {101}, {011}, modified
Löllingite - Prismatic {110}
Löllingite - Prismatic {011}
3d models and HTML5 code kindly provided by www.smorf.nl.

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X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.97 (3)
2.989 (5)
2.651 (7)
2.605 (100)
2.599 (60)
2.532 (60)
2.421 (30)
2.331 (65)
1.984 (9)
1.932 (7)
1.867 (20)
1.8543 (30)
1.6945 (25)
1.6401 (25)
1.6344 (35)
1.5934 (7)
1.5669 (11)
1.5059 (9)
1.4960 (7)
1.4413 (9)
1.3454 (7)
1.3224 (5)
1.3030 (7)
1.2942 (9)
1.2660 (3)
1.2612 (11)
1.2388 (7)
1.2116 (2)
1.1870 (5)
1.1802 (5)
1.1671 (7)
1.1659 (7)
1.1407 (9)
1.1167 (9)
1.1052 (7)
1.1036 (5)
1.0977 (9)
1.0906 (5)
1.0820 (7)
Comments:
ICDD 11-699 (synthetic)

Type Occurrence of LöllingiteHide

Synonyms of LöllingiteHide

Other Language Names for LöllingiteHide

Varieties of LöllingiteHide

ChathamiteShepard (1844) gave the name to an orthorhombic nickel-iron diarsenide which Holmes (1947) showed to be a Ni-bearing löllingite. Chathamite was later thought to be the iron member of an isometric diarsenide series that included chloanthite = nickelskutte...
Cobaltian LöllingiteA cobalt-bearing variety of löllingite.
GeyeriteA S-bearing variety containing up to 6.73% S.
GlaucopyriteA Co-bearing löllingite with up to 6.44% Co.

Relationship of Löllingite to other SpeciesHide

Other Members of this group:
AlloclasiteCo1-xFexAsSMon. 2 : P21
Anduoite(Ru,Os)As2Orth.
ClinosaffloriteCoAs2Mon. 2/m : P21/m
CostibiteCoSbSOrth. mm2 : Pmn21
NisbiteNiSb2Orth.
OeniteCoSbAsOrth.
Omeiite(Os,Ru)As2Orth.
ParacostibiteCoSbSOrth.
PararammelsbergiteNiAs2Orth.
RammelsbergiteNiAs2Orth. mmm (2/m 2/m 2/m) : Pnnm
Safflorite(Co,Ni,Fe)As2Orth. mmm (2/m 2/m 2/m) : Pnnm
Unnamed (Fe-Ni Antimonide Arsenide)(Fe,Ni)SbAs

Common AssociatesHide

Associated Minerals Based on Photo Data:
Quartz69 photos of Löllingite associated with Quartz on mindat.org.
Fluorite55 photos of Löllingite associated with Fluorite on mindat.org.
Arsenopyrite38 photos of Löllingite associated with Arsenopyrite on mindat.org.
Scheelite34 photos of Löllingite associated with Scheelite on mindat.org.
Calcite34 photos of Löllingite associated with Calcite on mindat.org.
Magnetite27 photos of Löllingite associated with Magnetite on mindat.org.
Manganoan Calcite22 photos of Löllingite associated with Manganoan Calcite on mindat.org.
Scorodite19 photos of Löllingite associated with Scorodite on mindat.org.
Karibibite18 photos of Löllingite associated with Karibibite on mindat.org.
Arsenic15 photos of Löllingite associated with Arsenic on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

2.EB.05aAurostibiteAuSb2Iso. m3 (2/m 3) : Pa3
2.EB.05bBambollaiteCu(Se,Te)2Tet.
2.EB.05aCattieriteCoS2Iso. m3 (2/m 3) : Pa3
2.EB.05aErlichmaniteOsS2Iso. m3 (2/m 3) : Pa3
2.EB.05aFukuchiliteCu3FeS8Iso. m3 (2/m 3) : Pa3
2.EB.05aGeversitePtSb2Iso. m3 (2/m 3) : Pa3
2.EB.05aHaueriteMnS2Iso. m3 (2/m 3) : Pa3
2.EB.05aInsizwaitePt(Bi,Sb)2
2.EB.05aKrut'aiteCuSe2Iso. m3 (2/m 3) : Pa3
2.EB.05aLauriteRuS2Iso. m3 (2/m 3) : Pa3
2.EB.05aPenroseite(Ni,Co,Cu)Se2Iso. m3 (2/m 3) : Pa3
2.EB.05aPyriteFeS2Iso. m3 (2/m 3) : Pa3
2.EB.05aSperrylitePtAs2Iso. m3 (2/m 3) : Pa3
2.EB.05aTrogtaliteCoSe2
2.EB.05aVaesiteNiS2Iso. m3 (2/m 3) : Pa3
2.EB.05aVillamaninite(Cu,Ni,Co,Fe)S2
2.EB.05aDzharkeniteFeSe2Iso.
2.EB.05aGaotaiiteIr3Te8Iso.
2.EB.10bAlloclasiteCo1-xFexAsSMon. 2 : P21
2.EB.10dCostibiteCoSbSOrth. mm2 : Pmn21
2.EB.10aFerroseliteFeSe2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.10aFrohbergiteFeTe2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.10cGlaucodot(Co0.50Fe0.50)AsSOrth. mm2 : Pmn21
2.EB.10aKulleruditeNiSe2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.10aMarcasiteFeS2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.10aMattagamiteCoTe2Orth.
2.EB.10eParacostibiteCoSbSOrth.
2.EB.10ePararammelsbergiteNiAs2Orth.
2.EB.10fOeniteCoSbAsOrth.
2.EB.15aAnduoite(Ru,Os)As2Orth.
2.EB.15aClinosaffloriteCoAs2Mon. 2/m : P21/m
2.EB.15aNisbiteNiSb2Orth.
2.EB.15aOmeiite(Os,Ru)As2Orth.
2.EB.15cPaxiteCuAs2Mon.
2.EB.15aRammelsbergiteNiAs2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.15aSafflorite(Co,Ni,Fe)As2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.15bSeinäjokite(Fe,Ni)(Sb,As)2Orth.
2.EB.20ArsenopyriteFeAsSMon. 2/m : P21/b
2.EB.20GudmunditeFeSbSMon. 2/m : P21/b
2.EB.20Osarsite(Os,Ru)AsSMon.
2.EB.20Ruarsite(Ru,Os)AsSMon.
2.EB.25CobaltiteCoAsSOrth. mm2 : Pca21
2.EB.25GersdorffiteNiAsSIso. m3 (2/m 3) : Pa3
2.EB.25Hollingworthite(Rh,Pt,Pd)AsSIso. m3 (2/m 3)
2.EB.25Irarsite(Ir,Ru,Rh,Pt)AsSIso.
2.EB.25JolliffeiteNiAsSeIso. m3 (2/m 3) : Pa3
2.EB.25KrutoviteNiAs2Iso.
2.EB.25MaslovitePtBiTe
2.EB.25MicheneritePdBiTe
2.EB.25PadmaitePdBiSeIso.
2.EB.25PlatarsitePtAsSIso.
2.EB.25TestibiopalladitePdTe(Sb,Te)Iso.
2.EB.25TolovkiteIrSbSIso.
2.EB.25UllmanniteNiSbSIso. 2 3 : P21 3
2.EB.25Willyamite(Co,Ni)SbS
2.EB.25ChangchengiteIrBiSIso.
2.EB.25MayingiteIrBiTeIso.
2.EB.25Hollingsworthite(Rh,Pt,Pd)AsS
2.EB.25KalungaitePdAsSeIso. m3 (2/m 3) : Pa3
2.EB.25MilotaitePdSbSeIso. 2 3 : P21 3
2.EB.30UrvantsevitePd(Bi,Pb)2Tet.
2.EB.35RheniiteReS2Tric.

Related Minerals - Dana Grouping (8th Ed.)Hide

2.12.2.1MarcasiteFeS2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.12.2.2FerroseliteFeSe2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.12.2.3FrohbergiteFeTe2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.12.2.5MattagamiteCoTe2Orth.
2.12.2.6KulleruditeNiSe2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.12.2.7Omeiite(Os,Ru)As2Orth.
2.12.2.8Anduoite(Ru,Os)As2Orth.
2.12.2.10Seinäjokite(Fe,Ni)(Sb,As)2Orth.
2.12.2.11Safflorite(Co,Ni,Fe)As2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.12.2.12RammelsbergiteNiAs2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.12.2.13NisbiteNiSb2Orth.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

3.9.1PyrrhotiteFe7S8Mon.
3.9.3PyriteFeS2Iso. m3 (2/m 3) : Pa3
3.9.4MarcasiteFeS2Orth. mmm (2/m 2/m 2/m) : Pnnm
3.9.5GreigiteFe2+Fe3+2S4Iso. m3m (4/m 3 2/m) : Fd3m
3.9.6Mackinawite(Fe,Ni)9S8Tet. 4/mmm (4/m 2/m 2/m) : P4/nmm
3.9.7Smythite(Fe,Ni)3+xS4 (x=0-0.3)Trig. 3m (3 2/m) : R3m
3.9.8Achávalite(Fe,Cu)SeHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
3.9.9FerroseliteFeSe2Orth. mmm (2/m 2/m 2/m) : Pnnm
3.9.10FrohbergiteFeTe2Orth. mmm (2/m 2/m 2/m) : Pnnm
3.9.12ArsenopyriteFeAsSMon. 2/m : P21/b
3.9.13GudmunditeFeSbSMon. 2/m : P21/b

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 LöllingiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Palache, C., Berman, H., Frondel, C. (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: 303-307.
Radcliffe, D., Berry, L.G. (1968) The safflorite-loellingite solid solution series. American Mineralogist: 53: 1856.
Kjekshus, A., Rakke, T., Andresen, A. (1974) Compounds of the marcasite type crystal structure. IX. Structural data for FeAs2, FeSe2, NiAs2, NiSb2, and CuSe2. Acta Chemica Scandinavica: A28: 996-1000.
Kjekshus, A., Peterzéns, P.G., Rakke, T., Andresen, A.F. (1979) Compounds with the marcasite type crystal structure. XIII. Structural and magnetic properties of CrtFe1-tAs2, CrtFe1-tSb2, Fe1-tNitAs2 and Fe1-t NitSb2. Acta Chemica Scandinavica: A33: 469-480.
Zeitschrift für Kristallographie: 32: 165-187.
Ondruš, P., Vavrín, I., Skála, R., Veselovský, F. (2001) Low-temperature Ni-rich löllingite from Háje, Príbram, Czech Republic. Rietveld crystal structure refinement. Neues Jahrbuch für Mineralogie, Monatshefte: 2001: 169-185.
Hem, S.R., Makovicky, E., Gervilla, F. (2001) Compositional trends in Fe, Co, and Ni sulfarsenides and their crystal-chemical implications: results from the Arroyo de la Cueva deposits, Ronda peridotite, southern Spain. The Canadian Mineralogist: 39: 831-853.
Nesbitt, H.W., Uhlig, I., Szargan, R. (2002) Surface reconstruction and As-polymerization at fractured loellingite (FeAs2) surfaces. American Mineralogist: 87: 1000-1004.
Gritzenko, Y.D., Spiridonov, E.M. (2005) Minerals of continuous series rammelsbergite—loellingite and rammelsbergite—safflorite in metamorphic—hydrothermal veins of Norilsk ore field. Zapiski Rossiiskogo Mineralogicheskogo Obshchetstva: 134(1): 53-68.

Internet Links for LöllingiteHide

Localities for LöllingiteHide

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 ListShow

Mineral and/or Locality  
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