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Horomanite

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Formula:
Fe6Ni3S8
Colour:
white with yellowish tint
Lustre:
Metallic
Specific Gravity:
6.44 (Calculated)
Crystal System:
Tetragonal
Name:
Named by A. Kitakaze, H. Itoh, and R. Komatsu in 2011 after the type locality, Horoman mine, Japan.
Compare pentlandite and mackinawite.

See also the chemically similar UM2002-26-S:FeNi and UM2007-27-S:CuFeIrNiRh.


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Classification of HoromaniteHide

Approved
Approval Year:
2007
2.BB.

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
B : Metal Sulfides, M: S > 1: 1 (mainly 2: 1)
B : With Ni
2.7.2.3

2 : SULFIDES
7 : AmBnXp, with (m+n):p = 9:8

Physical Properties of HoromaniteHide

Metallic
Transparency:
Opaque
Colour:
white with yellowish tint
Hardness:
VHN50=125 - 145 kg/mm2 - Vickers
Tenacity:
Brittle
Cleavage:
Distinct/Good
Fracture:
Irregular/Uneven
Density:
6.44 g/cm3 (Calculated)

Optical Data of HoromaniteHide

Type:
Anisotropic
Anisotropism:
weak dark-gray to light gray
Colour in reflected light:
white with yellowish tint
Internal Reflections:
none
Pleochroism:
Weak
Comments:
white to white with yellowish tint

Chemical Properties of HoromaniteHide

Formula:
Fe6Ni3S8

Crystallography of HoromaniteHide

Crystal System:
Tetragonal
Class (H-M):
4/mmm (4/m 2/m 2/m) - Ditetragonal Dipyramidal
Space Group:
P4/mmm
Setting:
P4/mmm
Cell Parameters:
a = 8.707(1) Å, c = 10.439(6) Å
Ratio:
a:c = 1 : 1.199
Unit Cell V:
791.40 ų (Calculated from Unit Cell)
Z:
4
Morphology:
anhedral

Type Occurrence of HoromaniteHide

General Appearance of Type Material:
Anhedral grains to 0.05mm.
Geological Setting of Type Material:
Lherzolite inclusions in peridotite.
Associated Minerals at Type Locality:

Synonyms of HoromaniteHide

Other Language Names for HoromaniteHide

Japanese:幌満鉱

Related Minerals - Nickel-Strunz GroupingHide

2.BB.SamaniiteCu2Fe5Ni2S8Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm
2.BB.UM2007-27-S:CuFeIrNiRh(Ni,Fe,Cu,Rh,Ir)11S9
2.BB.05HeazlewooditeNi3S2Trig. 3 2 : R3 2
2.BB.05OregoniteNi2FeAs2Hex.
2.BB.05Vozhminite(Ni,Co)4(As,Sb)S2Hex.
2.BB.05UM2007-30-S:FeFe3S2
2.BB.10ArsenohauchecorniteNi18Bi3AsS16Tet.
2.BB.10BismutohauchecorniteNi9Bi2S8Tet. 4/mmm (4/m 2/m 2/m) : P4/mmm
2.BB.10HauchecorniteNi9BiSbS8Tet. 4/mmm (4/m 2/m 2/m) : P4/mmm
2.BB.10TellurohauchecorniteNi9Bi(Te,Bi)S8Tet.
2.BB.10TučekiteNi9Sb2S8Tet.
2.BB.15ArgentopentlanditeAg(Fe,Ni)8S8Iso. m3m (4/m 3 2/m) : Fm3m
2.BB.15Cobaltpentlandite(Co,Ni,Fe)9S8Iso. m3m (4/m 3 2/m) : Fm3m
2.BB.15Geffroyite(Cu,Fe,Ag)9(Se,S)8Iso. m3m (4/m 3 2/m) : Fm3m
2.BB.15Godlevskite(Ni,Fe)9S8Orth. 2 2 2 : C2 2 2
2.BB.15Kharaelakhite(Cu,Pt,Pb,Fe,Ni)9S8Orth. mmm (2/m 2/m 2/m) : Pmmm
2.BB.15Manganoshadlunite(Mn,Pb,Cd)(Cu,Fe)8S8
2.BB.15Pentlandite(FexNiy)Σ9S8Iso. m3m (4/m 3 2/m) : Fm3m
2.BB.15Shadlunite(Pb,Cd)(Fe,Cu)8S8
2.BB.15SugakiiteCu(Fe,Ni)8S8Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm
2.BB.15UM2002-26-S:FeNi(Ni,Fe)9S8Hex.

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

2.7.2.1Mackinawite(Fe,Ni)9S8Tet. 4/mmm (4/m 2/m 2/m) : P4/nmm
2.7.2.2SugakiiteCu(Fe,Ni)8S8Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm
2.7.2.4SamaniiteCu2Fe5Ni2S8Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm

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 HoromaniteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Kitakaze, A. (1998) Sulfide minerals from the Horoman peridotite, Hokkaido, Japan. Journal of Mineralogy, Petrology and Economic Geology: 93: 369-379
Kitakaze, A., Itoh, H., Komatsu, R. (2011) Horomanite, (Fe,Ni,Co,Cu)9S8, and samaniite, Cu2(Fe,Ni)7S8, new mineral species from the Horoman peridotite massif, Hokkaido, Japan. Journal of Mineralogical and Petrological Sciences: 106: 204-210.
Kitakaze, A., Komatsu, R. (2016) New occurrence of Ni-rich horomanite from the Kouyama gabbro, Hagi city, Yamaguchi Prefecture, Japan. Japanese Magazine of Mineralogical and Petrological Sciences: 45: (in press)

Internet Links for HoromaniteHide

Localities for HoromaniteHide

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.
Bolivia
 
  • La Paz Department
    • Murillo Province
      • Incachaca reservoir
Hatløy, S. (2013). From cold to hot: post-Hirnantian sedimentary basins in Bolivia-A source rock for hydrocarbon deposits in the Andes?–A case study of the Uncía and Catavi formations. MS Thesis University of Stavanger.
Egypt
 
  • Red Sea Governorate
    • Eastern Desert
      • Wadi Hodein
Zoheir, B. (2011). Transpressional zones in ophiolitic mélange terranes: potential exploration targets for gold in the South Eastern Desert, Egypt. Journal of Geochemical Exploration, 111(1), 23-38.
Japan (TL)
 
  • Hokkaido
    • Hidaka Province
      • Samani-gun
        • Samani-cho
Kitakaze A, Itoh H, Komatsu R (2011) Horomanite, (Fe,Ni,Co,Cu)9S8, and samaniite, Cu2(Fe,Ni)7S8, new mineral species from the Horoman peridotite massif, Hokkaido, Japan. Journal of Mineralogical and Petrological Sciences 106, 204-210
Mineral and/or Locality  
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