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Mooihoekite

A valid IMA mineral species
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About MooihoekiteHide

Formula:
Cu9Fe9S16
Colour:
Yellow
Lustre:
Metallic, Sub-Metallic
Hardness:
4
Specific Gravity:
4.36
Crystal System:
Tetragonal
Name:
Named for the type locality of Mooihoek Farm, South Africa. Pronounced moi-hūk-ait.
This page provides mineralogical data about Mooihoekite.


Unique IdentifiersHide

Mindat ID:
2772
Long-form identifier:
mindat:1:1:2772:0

Similar NamesHide

MaohokiteA valid IMA mineral speciesMgFe2O4

IMA Classification of MooihoekiteHide

Classification of MooihoekiteHide

2.CB.10b

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
C : Metal Sulfides, M: S = 1: 1 (and similar)
B : With Zn, Fe, Cu, Ag, etc.
2.9.8.3

2 : SULFIDES
9 : AmBnXp, with (m+n):p = 1:1
3.1.26

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

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference for Standard
MhoIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Pronunciation of MooihoekiteHide

Pronunciation:
PlayRecorded byCountry
Jolyon RalphUnited Kingdom

Physical Properties of MooihoekiteHide

Metallic, Sub-Metallic
Transparency:
Opaque
Colour:
Yellow
Hardness:
Hardness:
VHN100=240 - 246 kg/mm2 - Vickers
Tenacity:
Brittle
Cleavage:
None Observed
Density:
4.36 g/cm3 (Measured)    4.37 g/cm3 (Calculated)
Comment:
On synthetic material

Optical Data of MooihoekiteHide

Anisotropism:
Weak
Reflectivity:
WavelengthR1 (%)
400nm14.3%
420nm16.7%
440nm20.0%
460nm23.9%
480nm27.5%
500nm30.6%
520nm33.2%
540nm35.2%
560nm36.7%
580nm37.8%
600nm38.8%
620nm39.4%
640nm40.0%
660nm40.2%
680nm40.3%
700nm40.4%


Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 40.4%.
Colour in reflected light:
Similar to chalcopyrite, tranishes to pinkish brown to a heavy purplish

Chemistry of MooihoekiteHide

Mindat Formula:
Cu9Fe9S16
Element Weights:
Element% weight
Cu36.025 %
S32.316 %
Fe31.659 %

Calculated from ideal end-member formula.
Common Impurities:
Ni

Crystallography of MooihoekiteHide

Crystal System:
Tetragonal
Class (H-M):
42m - Scalenohedral
Space Group:
P42m
Cell Parameters:
a = 10.585(5) Å, c = 5.383(5) Å
Ratio:
a:c = 1 : 0.509
Unit Cell V:
603.12 ų (Calculated from Unit Cell)
Z:
1
Morphology:
Not yet found in crystals

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0009489MooihoekiteHall S R, Rowland J F (1973) The crystal structure of synthetic mooihoekite, Cu9Fe9S16 Acta Crystallographica B29 2365-23721973synthetic0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
7.49 Å(20)
3.77 Å(30)
3.07 Å(100)
2.84 Å(20)
2.64 Å(30)
2.16 Å(20)
1.889 Å(80)
1.871 Å(40)
1.615 Å(30)
1.597 Å(60)
1.323 Å(40)
1.223 Å(50)
1.214 Å(20)
1.091 Å(30)
1.083 Å(60)
1.025 Å(20)
1.018 Å(40)
0.943 Å(30)
0.935 Å(30)
Comments:
ICDD 25-286

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 3b: Earth’s earliest hydrosphere>4.45
15 : Black/white smoker minerals and other seafloor hydrothermal minerals
High-? alteration and/or metamorphism
33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12])
Stage 4b: Highly evolved igneous rocks>3.0
37 : Layered igneous intrusions and related PGE minerals

Type Occurrence of MooihoekiteHide

Place of Conservation of Type Material:
Princeton University, Princeton, New Jersey; National Museum of Natural History, Washington, D.C., USA, 124965; Canadian Museum of Nature, Ottawa, 10309; Royal Ontario Museum, Toronto, Canada, M30992; Heidelberg University, Heidelberg, Germany, 2313a
Associated Minerals at Type Locality:

Synonyms of MooihoekiteHide

Other Language Names for MooihoekiteHide

Relationship of Mooihoekite to other SpeciesHide

Other Members of Talnakhite Group:
HaycockiteCu4Fe5S8Orth. 222
PutoraniteCu1.1Fe1.2S2Iso. m3m(4/m32/m) : Pn3m
TalnakhiteCu9(Fe,Ni)8S16Iso. 43m : I43m

Common AssociatesHide

Associations Based on Photo Data:
30 photos of Mooihoekite associated with CubaniteCuFe2S3
17 photos of Mooihoekite associated with TalnakhiteCu9(Fe,Ni)8S16
17 photos of Mooihoekite associated with Ferrovalleriite2(Fe,Cu)S · 1.5Fe(OH)2
14 photos of Mooihoekite associated with MagnetiteFe2+Fe3+2O4
8 photos of Mooihoekite associated with AltaitePbTe
7 photos of Mooihoekite associated with ChalcopyriteCuFeS2
7 photos of Mooihoekite associated with Native SilverAg
6 photos of Mooihoekite associated with CabriitePd2CuSn
6 photos of Mooihoekite associated with Pentlandite(NixFey)Σ9S8
6 photos of Mooihoekite associated with CalciteCaCO3

Related Minerals - Strunz-mindat GroupingHide

2.CB.RichardsiteZn2CuGaS4Tet. 42m : I42m
2.CB.OkruginiteCu2SnSe3Mon. m : Bb
2.CB.HanswilkeiteKFeS2Mon. 2/m : B2/b
2.CB.AuroselenideAuSeMon. 2/m : B2/m
2.CB.Ruizhongite(Ag2◻)Pb3Ge2S8Iso. 43m : I43d
2.CB.AgmantiniteAg2MnSnS4Orth.
2.CB.TolstykhiteAu3S4Te6Tric. 1 : P1
2.CB.GachingiteAu(Te1-xSex)Orth. mmm(2/m2/m2/m)
2.CB.05aHawleyiteCdSIso. 43m : F43m
2.CB.05'UM1998-15-S:CuFeZn'Cu2Fe3Zn5S10
2.CB.05aColoradoiteHgTeIso. 43m : F43m
2.CB.05aMetacinnabarHgSIso. 43m : F43m
2.CB.05aTiemanniteHgSeIso. 43m : F43m
2.CB.05aSphaleriteZnSIso. 43m : F43m
2.CB.05bSakuraiite(Cu,Zn,Fe)3(In,Sn)S4 Iso.
2.CB.05cPolhemusite(Zn,Hg)STet.
2.CB.05aRudashevskyite(Fe,Zn)SIso. 43m : F43m
2.CB.05aStilleiteZnSeIso. 43m : F43m
2.CB.05aIshiharaite(Cu,Ga,Fe,In,Zn)SIso. 43m : F43m
2.CB.07a'Unnamed (Cu-Mn-Sn Sulphide)'Cu2MnSnS4
2.CB.07aShenzhuangiteNiFeS2Tet. 42m : I42d
2.CB.10bTalnakhiteCu9(Fe,Ni)8S16Iso. 43m : I43m
2.CB.10bHaycockiteCu4Fe5S8Orth. 222
2.CB.10aLenaiteAgFeS2Tet. 42m : I42d
2.CB.10aGalliteCuGaS2Tet. 42m : I42d
2.CB.10aRoquesiteCuInS2Tet. 42m : I42d
2.CB.10aEskeborniteCuFeSe2Tet. 42m : P42c
2.CB.10a'UM1984-30-S:CuFeSn'Cu2Fe2Sn3S7
2.CB.10cOmariniiteCu8Fe2ZnGe2S12Orth. 222 : I222
2.CB.10aChalcopyriteCuFeS2Tet. 42m : I42d
2.CB.10a'Unnamed (Cu-Zn-In Sulphide)'CuZn2InS4
2.CB.10aLaforêtiteAgInS2Tet. 42m : I42d
2.CB.10bPutoraniteCu1.1Fe1.2S2Iso. m3m(4/m32/m) : Pn3m
2.CB.15aVelikiteCu2HgSnS4Tet. 4 : I4
2.CB.15c'UM2006-11-S:CuFeGeZn'Cu8(Fe,Zn)3Ge2S12 (?)
2.CB.15aHocartiteAg2(Fe2+,Zn)SnS4Tet. 42m : I42m
2.CB.15aKësteriteCu2ZnSnS4Tet. 4 : I4
2.CB.15aPirquitasiteAg2ZnSnS4Tet. 4 : I4
2.CB.15aStanniteCu2FeSnS4Tet. 42m : I42m
2.CB.15cStannoiditeCu+6Cu2+2(Fe2+,Zn)3Sn2S12Orth. 222 : I222
2.CB.15bMohiteCu2SnS3Mon.
2.CB.15aČernýiteCu2CdSnS4Tet. 42m : I42m
2.CB.15aIdaiteCu5FeS6Hex.
2.CB.15aFerrokësteriteCu2FeSnS4Tet. 4 : I4
2.CB.15aKuramiteCu3SnS4Tet. 42m : I42m
2.CB.17a v'Arsenic-bearing Renierite'Cu11GeAsFe4S16
2.CB.20MawsoniteCu6Fe2SnS8Tet. 42m : P4m2
2.CB.20ChatkaliteCu6FeSn2S8Tet. 42m : P4m2
2.CB.30'Frieseite'Ag2Fe5S8 (?)
2.CB.30NekrasoviteCu26V2(Sn,As,Sb)6S32Iso. 43m : P43n
2.CB.30'Argyropyrite'near Ag2Fe7S11
2.CB.30MaikainiteCu20(Fe,Cu)6Mo2Ge6S32Iso. m3m(4/m32/m)
2.CB.30ColusiteCu13VAs3S16Iso. 43m : P43n
2.CB.30GermaniteCu13Fe2Ge2S16Iso. 43m : P43n
2.CB.30GermanocolusiteCu26V2(Ge,As)6S32Iso. 43m : P43m
2.CB.30StibiocolusiteCu13V(Sb,Sn,As)3S16Iso. 43m : P43m
2.CB.30Ovamboite Cu20(Fe,Cu,Zn)6W2Ge6S32Iso. 43m : P43n
2.CB.35aMorozeviczite(Pb,Fe)3Ge1-xS4Iso.
2.CB.35aRenierite(Cu+,Zn)11Fe4(Ge4+,As5+)2S16Tet. 42m : P42c
2.CB.35aHemusiteCu6SnMoS8Iso.
2.CB.35bCatamarcaiteCu6GeWS8Hex. 6mm : P63mc
2.CB.35aVincienniteCu+7Cu2+3Fe2+2Fe3+2Sn(As,Sb)S16Tet.
2.CB.35aKiddcreekiteCu6SnWS8Iso. 43m : F43m
2.CB.35aPolkovicite(Fe,Pb)3(Ge,Fe)1-xS4Iso.
2.CB.40LautiteCuAsSOrth. mmm(2/m2/m2/m) : Pnma
2.CB.42LingbaoiteAgTe3Trig. 3m : R3m
2.CB.45CadmoseliteCdSeHex. 6mm : P63mc
2.CB.45RambergiteMnSHex. 6mm : P63mc
2.CB.45Buseckite(Fe,Zn,Mn)SHex. 6mm : P63mc
2.CB.45MaletoyvayamiteAu3Se4Te6Tric. 1 : P1
2.CB.45GreenockiteCdSHex. 6mm : P63mc
2.CB.45Wurtzite(Zn,Fe)SHex. 6mm : P63mc
2.CB.47MurchisiteCr5S6Trig. 3m(32/m) : P31c
2.CB.50'Zincselenide'ZnSe
2.CB.50WassoniteTiSTrig. 3m(32/m) : R3m
2.CB.52'Dzhezkazganite'ReMoCu2PbS6 ?Trig. 3m : R3m
2.CB.55bIsocubaniteCuFe2S3Iso. m3m(4/m32/m) : Fm3m
2.CB.55aCubaniteCuFe2S3Orth. mmm(2/m2/m2/m)
2.CB.60RaguiniteTlFeS2Orth.
2.CB.60PicotpauliteTlFe2S3Orth. mmm(2/m2/m2/m) : Cmcm
2.CB.65ArgentopyriteAgFe2S3Mon. 2/m
2.CB.65SternbergiteAgFe2S3Orth. mmm(2/m2/m2/m)
2.CB.70SulvaniteCu3VS4Iso. 43m : P43m
2.CB.75VulcaniteCuTeOrth. mmm(2/m2/m2/m)
2.CB.80EmpressiteAgTeOrth. mmm(2/m2/m2/m)
2.CB.85MuthmanniteAuAgTe2Mon. 2/m : P2/m

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.

Internet Links for MooihoekiteHide

References for MooihoekiteHide

Reference List:

Localities for MooihoekiteHide

Showing 30 localities.

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.
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Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and 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 (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Atlantic Ocean
 
  • Mid-Atlantic Ridge complex
Bonatti et al. (1976)
Bulgaria
 
  • Sofia Province
    • Etropole Municipality
Mladenova et al. (2017)
China
 
  • Jiangxi
    • Ganzhou
      • Xingguo Co.
Xianchang Luo (1983)
Cyprus
 
  • Nicosia District
    • Apliki
Antivachis (2015)
Greece
 
  • Attica
    • East Attica
      • Lavreotiki
        • Agios Konstantinos (Kamariza)
        • Km 3
          • Kaminiza mines
Möckel (2001)
India
 
  • Madhya Pradesh
    • Jabalpur Division
      • Balaghat District
        • Baihar
          • Malanjkand
Panigrahi et al. (1997)
Italy
 
  • Emilia-Romagna
    • Parma Province
      • Berceto
        • Corchia mine
Adorni F. (1997)
Japan
 
  • Hokkaidō Prefecture
    • Ishikari Subprefecture
      • Chitose City
Kitakaze (2010)
Poland
 
  • Lower Silesian Voivodeship
Piestrzyński et al. (2012)
    • Lubin County
Kucha H. 2007: Mineralogia kruszcowa i ...
  • Podlaskie Voivodeship
    • Suwałki County
Nejbert (2008)
Kucha (1982)
Russia
 
  • Krasnoyarsk Krai
    • Taymyrskiy Autonomous Okrug
      • Taimyr Peninsula
Spiridonov et al. (2015)
          • Talnakh Cu-Ni Deposit
Pekov (1998)
Yevstigneyeva et al. (1973) +5 other references
2014 Ultramafic-mafic intrusions +1 other reference
Gerald K. Czamanske et al. (1992)
    • Taymyrsky Dolgano-Nenetsky District
      • Kureika river
        • Dzheltul'skii massif (Dzhaltul)
Shvedov et al. (2015)
  • Murmansk Oblast
Orsoev et al. (1985)
  • Republic of Karelia
Grokhovskaya et al. (2005)
South Africa
 
  • Limpopo
    • Mopani District Municipality
      • Ba-Phalaborwa Local Municipality
Cairncross et al. (1995)
    • Sekhukhune District Municipality
      • Fetakgomo Tubatse Local Municipality
Amer.Min. (1972)
        • Steelpoort
Oberthür et al. (2021)
  • North West
    • Bojanala Platinum District Municipality
      • Rustenburg Local Municipality
        • Rustenburg
          • Rustenburg Town & Townlands Farm
Kinloch et al. (1990) +1 other reference
USA
 
  • Minnesota
Anthony et al. (1990)
    • Saint Louis County
      • Ely-Hoyt Lakes Area
Good et al. (2010)
  • Montana
JF Carpentier specimen
    • Stillwater County
  • Washington
    • Chelan County
      • Leavenworth Mining District
        • Van Epps Pass
John Lindell Collection
 
and/or  
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