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⇱ Horomanite: Mineral information, data and localities.

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Horomanite

A valid IMA mineral species
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About HoromaniteHide

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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, mackinawite and shenzhuangite.

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


Unique IdentifiersHide

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Mindat ID:
32665
Long-form identifier:
mindat:1:1:32665:8

Similar NamesHide

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HarmuniteA valid IMA mineral speciesCaFe2O4
HermanniteA synonym of Rhodonite

IMA Classification of HoromaniteHide

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Approved
Approval year:
2007
First published:
2011

Classification of HoromaniteHide

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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

Mineral SymbolsHide

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

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

Physical Properties of HoromaniteHide

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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)
Comment:
Cámara et al. (2014) discuss whether the calculated density might be in error

Optical Data of HoromaniteHide

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Anisotropism:
weak dark-gray to light gray
Reflectivity:
WavelengthR1 (%)R2 (%)
436nm34.7%37.8%
497nm40.0%43.2%
543nm43.2%46.4%
586nm45.4%48.5%
648nm47.8%50.7%


Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 50.7%.
R1 shown in black, R2 shown in
Colour in reflected light:
white with yellowish tint
Internal Reflections:
none
Pleochroism:
Weak
Comments:
white to white with yellowish tint

Chemistry of HoromaniteHide

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Mindat Formula:
Fe6Ni3S8
Element Weights:
Element% weight
Fe43.648 %
S33.415 %
Ni22.937 %

Calculated from ideal end-member formula.

Crystallography of HoromaniteHide

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Crystal System:
Tetragonal
Class (H-M):
4/mmm(4/m2/m2/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

X-Ray Powder DiffractionHide

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Powder Diffraction Data:
d-spacingIntensity
3.080 Å(100)
1.825 Å(60)
1.805 Å(54)
1.947 Å(51)
2.955 Å(32)
1.984 Å(25)
6.16 Å(10)

Geological EnvironmentHide

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Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 3a: Earth’s earliest Hadean crust>4.50
7 : Ultramafic igneous rocks
Stage 3b: Earth’s earliest hydrosphere>4.45
12 : Hadean hydrothermal subsurface sulfide deposits (see also #33)
High-? alteration and/or metamorphism
33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12])

Type Occurrence of HoromaniteHide

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General Appearance of Type Material:
Anhedral grains to 0.05mm.
Place of Conservation of Type Material:
Tohoku University Museum, Japan.
Geological Setting of Type Material:
Lherzolite inclusions in peridotite.
Associated Minerals at Type Locality:

Synonyms of HoromaniteHide

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Other Language Names for HoromaniteHide

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German:Horomanit
Japanese:幌満鉱

Common AssociatesHide

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Associated Minerals Based on Photo Data:
1 photo of Horomanite associated with SugakiiteCu(Fe,Ni)8S8
1 photo of Horomanite associated with SamaniiteCu2Fe5Ni2S8

Related Minerals - Strunz-mindat GroupingHide

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2.BB.ArsenotučekiteNi18Sb3AsS16Tet. 4mm : I4mm
2.BB.HrabákiteNi9PbSbS8Tet. 4/mmm(4/m2/m2/m) : P4/mmm
2.BB.UM2007-27-S:CuFeIrNiRh(Ni,Fe,Cu,Rh,Ir)11S9
2.BB.SamaniiteCu2Fe5Ni2S8Tet. 4/mmm(4/m2/m2/m) : P42/mnm
2.BB.05HeazlewooditeNi3S2Trig. 32 : R32
2.BB.05UM2007-30-S:FeFe3S2
2.BB.05Vozhminite(Ni,Co)4(As,Sb)S2Hex.
2.BB.05OregoniteNi2FeAs2Hex.
2.BB.10HauchecorniteNi9BiSbS8Tet. 4/mmm(4/m2/m2/m) : P4/mmm
2.BB.10ArsenohauchecorniteNi18Bi3AsS16Tet.
2.BB.10TellurohauchecorniteNi9Bi(Te,Bi)S8Tet. 4/mmm(4/m2/m2/m) : P4/mmm
2.BB.10JinxiuiteNi18Bi2SbAsS16Tet. 4/mmm(4/m2/m2/m) : I4/mmm
2.BB.10BismutohauchecorniteNi9Bi2S8Tet. 4/mmm(4/m2/m2/m) : P4/mmm
2.BB.10TučekiteNi9Sb2S8Tet. 4/mmm(4/m2/m2/m) : P4/mmm
2.BB.15ArgentopentlanditeAg(Fe,Ni)8S8Iso. m3m(4/m32/m) : Fm3m
2.BB.15Shadlunite(Pb,Cd)(Fe,Cu)8S8Iso. m3m(4/m32/m) : Fm3m
2.BB.15Ferhodsite(Fe,Rh,Ni,Ir,Cu,Pt)9S8Tet.
2.BB.15CobaltpentlanditeCo9S8Iso. m3m(4/m32/m) : Fm3m
2.BB.15UM2002-26-S:FeNi(Ni,Fe)9S8Hex.
2.BB.15Pentlandite(NixFey)Σ9S8Iso. m3m(4/m32/m) : Fm3m
2.BB.15OberthüriteRh3Ni32S32Iso.
2.BB.15Geffroyite(Cu,Fe,Ag)9(Se,S)8Iso. m3m(4/m32/m) : Fm3m
2.BB.15Kharaelakhite(Cu,Pt,Pb,Fe,Ni)9S8Orth. mmm(2/m2/m2/m) : Pmmm
2.BB.15Manganoshadlunite(Mn,Pb,Cd)(Cu,Fe)8S8
2.BB.15SugakiiteCu(Fe,Ni)8S8Tet. 4/mmm(4/m2/m2/m) : P42/mnm
2.BB.15Godlevskite(Ni,Fe)9S8Orth. 222 : C222
2.BB.15WangyanitePdNi8S8Iso. m3m(4/m32/m) : Fd3c

Other InformationHide

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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 HoromaniteHide

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mindat.org URL:
https://www.mindat.org/min-32665.html
Please feel free to link to this page.

References for HoromaniteHide

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Reference List:

Localities for HoromaniteHide

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This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the 👁 Image
symbol to view information about a locality. The 👁 Image
symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

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👁 Image
- This locality has map coordinates listed. 👁 Image
- This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. 👁 Image
- Good crystals or important locality for species. 👁 Image
- 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.
Bolivia
  • La Paz
    • Pedro Domingo Murillo Province
      • Incachaca reservoir
Hatløy (2013)
Canada
  • Québec
    • Saguenay-Lac-Saint-Jean
      • Le Fjord-du-Saguenay RCM
        • Mont-Valin
Egypt
  • Red Sea Governorate
Khedr et al. (2020)
    • Wadi Hodein
Zoheir (2011)
Japan (TL)
  • Hokkaidō Prefecture
    • Hidaka Subprefecture
      • Samani District
        • Samani-cho
Kitakaze et al. (2011)
  • Yamaguchi Prefecture
    • Hagi City
KITAKAZE et al. (2016)
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