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Isocubanite

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Formula:
CuFe
 
2
S
 
3
System:IsometricColour:Bronze yellow brown
Hardness:3½
Name:Named as the isometric polymorph of cubanite.
Dimorph of:Cubanite
This page provides mineralogical data about Isocubanite.

Classification of Isocubanite

IMA status:Approved 1988
Strunz 8th edition ID:2/C.04-50
Nickel-Strunz 10th (pending) edition ID:2.CB.55b

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.
Dana 8th edition ID:2.9.13.3

2 : SULFIDES
9 : AmBnXp, with (m+n):p = 1:1
Hey's CIM Ref.:3.1.28

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
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Type Occurrence of Isocubanite

Type Locality:TAG mound (EPR 21° N), Juan de Fuca Ridge complex, East Pacific Rise, Pacific Ocean
Year of Discovery:1988

Physical Properties of Isocubanite

Lustre:Metallic, Sub-Metallic
Diaphaneity (Transparency):Opaque
Colour:Bronze yellow brown
Hardness (Mohs):3½
Hardness (Vickers):VHN100=175 kg/mm2
Tenacity:Brittle
Cleavage:None Observed
Fracture:Irregular/Uneven
Density (calculated):4.075 g/cm3

Crystallography of Isocubanite

Crystal System:Isometric
Class (H-M):m3m (4/m 3 2/m) - Hexoctahedral
Space Group:Fm3m {F4/m 3 2/m}
Cell Parameters:a = 5.303Å
Unit Cell Volume:V 149.13 ų (Calculated from Unit Cell)
Morphology:fine-grained to minutely cubo-octahedral
Comment:Z uncertain = 3 or 4
X-Ray Powder Diffraction:
d-spacingIntensity
3.05 (100)
2.64 (30)
1.87 (80)
1.59 (70)
1.32 (40)
1.21 (50)
1.08 (60)
1.02 (50)

Optical Data of Isocubanite

Type:Isotropic
Reflectivity:
nmR= 34.8 (540 nm%


Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 34.8 (540 nm%.
Colour in reflected light:yellow bronze
Pleochroism:Non-pleochroic

Chemical Properties of Isocubanite

Formula:
CuFe
 
2
S
 
3
Essential elements:Cu, Fe, S
All elements listed in formula:Cu, Fe, S
Common Impurities:Zn

Relationship of Isocubanite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
2.CB.05aColoradoite
HgTe
2.CB.05aHawleyite
CdS
2.CB.05aMetacinnabar
HgS
2.CB.05cPolhemusite
(Zn,Hg)S
2.CB.05bSakuraiite
(Cu,Zn,Fe)
 
3
(In,Sn)S
 
4
2.CB.05aSphalerite
ZnS
2.CB.05aStilleite
ZnSe
2.CB.05aTiemannite
HgSe
2.CB.05UM1998-15-S:CuFeZn
Cu
 
2
Fe
 
3
Zn
 
5
S
 
10
2.CB.05aRudashevskyite
(Fe,Zn)S
2.CB.10aChalcopyrite
CuFeS
 
2
2.CB.10aEskebornite
CuFeSe
 
2
2.CB.10aGallite
CuGaS
 
2
2.CB.10bHaycockite
Cu
 
4
Fe
 
5
S
 
8
2.CB.10aLenaite
AgFeS
 
2
2.CB.10bMooihoekite
Cu
 
9
Fe
 
9
S
 
16
2.CB.10bPutoranite
Cu
 
9
(Fe,Ni)
 
9
S
 
16
2.CB.10aRoquesite
CuInS
 
2
2.CB.10bTalnakhite
Cu
 
9
(Fe,Ni)
 
8
S
 
16
2.CB.10aLaforêtite
AgInS
 
2
2.CB.15aČernýite
Cu
 
2
(Cd,Zn,Fe)SnS
 
4
2.CB.15aFerrokesterite
Cu
 
2
(Fe,Zn)SnS
 
4
2.CB.15aHocartite
Ag
 
2
(Fe
2+
 
,Zn)SnS
 
4
2.CB.15aIdaite
Cu
 
5
FeS
 
6
2.CB.15aKesterite
Cu
 
2
(Zn,Fe)SnS
 
4
2.CB.15aKuramite
Cu
 
3
SnS
 
4
2.CB.15bMohite
Cu
 
2
SnS
 
3
2.CB.15aPirquitasite
Ag
 
2
ZnSnS
 
4
2.CB.15aStannite
Cu
 
2
(Fe,Zn)SnS
 
4
2.CB.15cStannoidite
Cu
+
6
Cu
2+
2
(Fe
2+
 
,Zn)
 
3
Sn
 
2
S
 
12
2.CB.15aVelikite
(Cu,Hg)
 
11
Sn
 
4
S
 
16
2.CB.15cUM2006-11-S:CuFeGeZn
Cu
 
8
(Fe,Zn)
 
3
Ge
 
2
S
 
12
 (?)
2.CB.20Chatkalite
Cu
 
6
FeSn
 
2
S
 
8
2.CB.20Mawsonite
Cu
 
6
Fe
 
2
SnS
 
8
2.CB.30Colusite
Cu
 
26
V
 
2
(As,Sn,Sb)
 
6
S
 
32
2.CB.30Germanite
Cu
 
13
Fe
 
2
Ge
 
2
S
 
16
2.CB.30Germanocolusite
Cu
 
26
V
 
2
(Ge,As)
 
6
S
 
32
2.CB.30Nekrasovite
Cu
 
26
V
 
2
(Sn,As,Sb)
 
6
S
 
32
2.CB.30Stibiocolusite
Cu
 
13
V
 
4
(Sb,Sn,As)
 
3
S
 
16
2.CB.30Ovamboite
Cu
 
20
(Fe,Cu,Zn)
 
6
W
 
2
Ge
 
6
S
 
32
2.CB.30Maikainite
Cu
 
20
(Fe,Cu)
 
6
Mo
 
2
Ge
 
6
S
 
32
2.CB.35aHemusite
Cu
 
6
SnMoS
 
8
2.CB.35aKiddcreekite
Cu
 
6
SnWS
 
8
2.CB.35aPolkovicite
(Fe,Pb)
 
3
(Ge,Fe)
 
1-x
S
 
4
2.CB.35aRenierite
(Cu,Zn)
 
11
(Ge,As)
 
2
Fe
 
4
S
 
16
2.CB.35aVinciennite
Cu
+
7
Cu
2+
3
Fe
2+
2
Fe
3+
2
Sn(As,Sb)S
 
16
2.CB.35aMorozeviczite
(Pb,Fe)
 
3
Ge
 
1-x
S
 
4
2.CB.35bCatamarcaite
Cu
 
6
GeWS
 
8
2.CB.40Lautite
CuAsS
2.CB.45Cadmoselite
CdSe
2.CB.45Greenockite
CdS
2.CB.45Wurtzite
(Zn,Fe)S
2.CB.45Rambergite
MnS
2.CB.45Buseckite
(Fe,Zn,Mn)S
2.CB.55aCubanite
CuFe
 
2
S
 
3
2.CB.60Picotpaulite
TlFe
 
2
S
 
3
2.CB.60Raguinite
TlFeS
 
2
2.CB.65Argentopyrite
AgFe
 
2
S
 
3
2.CB.65Sternbergite
AgFe
 
2
S
 
3
2.CB.70Sulvanite
Cu
 
3
VS
 
4
2.CB.75Vulcanite
CuTe
2.CB.80Empressite
AgTe
2.CB.85Muthmannite
AuAgTe
 
2
Related Minerals - Hey's Index Grouping:

- +
3.1.1Chalcocite
Cu
 
2
S
3.1.2Djurleite
Cu
 
31
S
 
16
3.1.3Digenite
Cu
 
9
S
 
5
3.1.4Anilite
Cu
 
7
S
 
4
3.1.5Roxbyite
Cu
 
9
S
 
5
3.1.6Spionkopite
Cu
 
39
S
 
28
3.1.7Geerite
Cu
 
8
S
 
5
3.1.8Covellite
CuS
3.1.9Berzelianite
Cu
 
2
Se
3.1.10Bellidoite
Cu
 
2
Se
3.1.11Umangite
Cu
 
3
Se
 
2
3.1.12Yarrowite
Cu
 
9
S
 
8
3.1.13Athabascaite
Cu
 
5
Se
 
4
3.1.14Klockmannite
CuSe
3.1.15Krut'aite
CuSe
 
2
3.1.16Weissite
Cu
 
2-x
Te
3.1.17Rickardite
Cu
 
7
Te
 
5
3.1.18Vulcanite
CuTe
3.1.19Bambollaite
Cu(Se,Te)
 
2
3.1.20Lautite
CuAsS
3.1.21Mgriite
Cu
 
3
AsSe
 
3
3.1.22Cubanite
CuFe
 
2
S
 
3
3.1.23Bornite
Cu
 
5
FeS
 
4
3.1.24Fukuchilite
Cu
 
3
FeS
 
8
3.1.25Chalcopyrite
CuFeS
 
2
3.1.26Mooihoekite
Cu
 
9
Fe
 
9
S
 
16
3.1.27Haycockite
Cu
 
4
Fe
 
5
S
 
8
3.1.29Idaite
Cu
 
5
FeS
 
6
3.1.30Nukundamite
(Cu,Fe)
 
4
S
 
4
3.1.31Putoranite
Cu
 
9
(Fe,Ni)
 
9
S
 
16
3.1.32Orickite
2CuFeS
 
2
 · H
 
2
O
3.1.33Eskebornite
CuFeSe
 
2
3.1.34Chaméanite
(Cu,Fe)
 
4
As(Se,S)
 
4
3.1.35Talnakhite
Cu
 
9
(Fe,Ni)
 
8
S
 
16

Other Names for Isocubanite

Synonyms:
IMA1983-EIsochalcopyrite
Other Languages:
German:Isocubanit
Spanish:Isocubanita

Other Information

Fluorescence in UV light:Not fluorescent
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 Isocubanite

Reference List:

- +
American Mineralogist: 74: 503.

Zeitschrift für Kristallographie: 132: 276-287.

Mineralogical Magazine (1988): 52: 509-514.

Internet Links for Isocubanite

Search Engines:
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  • Look for Isocubanite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Isocubanite details from Handbook of Mineralogy (PDF)
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    • Localities for Isocubanite

    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.
    Hide Locality List
    (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.
    Atlantic Ocean
     
    • Mid-Atlantic Ridge complex
    		Canadian Mineralogist: 34: 23-28.
    New Data on Minerals (2004): 39: 99-105
    Y. Moëlo : "Compte-rendu de la réunion "Systématique des Minéraux" du 23 novembre 1989", Bull. Soc. Franç. Minéral. , France.
    Pašava, J., Vymazalová, A., and Petersen, S. (2007): Mineralium Deposita 42, 423-431.
    Austria
     
    • Tyrol
      • North Tyrol
        • Kauns valley
          • Platz
    		Vavtar, F. (1980): Boden, a metamorphic syngenetic iron-copper accumulation in Oetztal-Kristallin paragneisses; Kaunertal, Tyrol, Austria. Berg- und Hüttenmaennische Monatshefte 125, 194-200. (in German)
    Germany
     
    • Bavaria
      • Franconia
        • Fichtelgebirge
          • Wunsiedel
            • Sinatengrün
    		Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
      • Upper Palatinate
        • Oberpfälzer Wald
          • Waldsassen
            • Pfaffenreuth
    		Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
    Italy
     
    • Emilia-Romagna
      • Parma Province
        • Berceto
          • Corchia mine
    		ADORNI F., GUELFI F. (1997) - La miniera di Fe e Cu di Corchia, Berceto, Appennino Parmense. - Riv. Min. It., N. 3, 217-250.
    ADORNI F., GUELFI F. (1997) - La miniera di Fe e Cu di Corchia, Berceto, Appennino Parmense. - Riv. Min. It., N. 3, 217-250.
    Adorni F., Guelfi F. (1997) - La miniera di Fe e Cu di Corchia, Berceto, Appennino Parmense. - Riv. Min. It. N 3, 217-250.
    Pacific Ocean
     
    • East Pacific Rise
    		Econ Geol (1986) 81:1867-1883
      • Juan de Fuca Ridge complex
    		Econ Geol (1986) 81:1867-1883
    AMES, D.E., FRANKLIN, J.M. & HANNINGTON, M.D. (1993) Mineralogy and geochemistry of active and inactive chimneys and massive sulfide, Middle Valley, northern Juan de Fuca Ridge: an evolving hydrothermal system. Canadian Mineralogist 31, 997-1024.
          • Bent Hill area
    		Petrology from Bent Hill, ODP Mound and TAG Massive Sulfide Deposits 1. (Lawrie, D. & Miller, D. Jay).
        • Southern Gorda Ridge
    		Eos Trans. AGU, 81 (48), Fall Meet. Suppl., 2000
    Min.Mag.(1988) 52, 509-514
    Russia
     
    • Urals Region
      • Southern Urals
        • Orenburgskaya Oblast'
          • Mednogorsk District
            • Sakmara Zone
    		Simonov, V.A., Kovyazin, S.V., Terenya, E.O., Maslennikov, V.V., Zaykov, V.V., and Maslennikova, S.P. (2006): Geology of Ore Deposits 48(5), 369-383.
    USA
     
    • Hawaii
      • Hawaii Co. (Hawaii Island)
    		American Mineralogist: 76: 1363-1372.
    Mineral and/or Locality
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    Copyright © Jolyon Ralph and Ida Chau 1993-2013. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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