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Horomanite

A valid IMA mineral species
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01636270017272471097833.jpg
Horomanite, etc.

Horoman peridotite body, Samani-cho, Samani District, Hidaka Subprefecture, Hokkaidō Prefecture, Japan
01636270017272471097833.jpg
Horomanite, etc.

Horoman peridotite body, Samani-cho, Samani District, Hidaka Subprefecture, Hokkaidō Prefecture, Japan
00165920017272059799288.jpg
Horomanite, etc.

Horoman peridotite body, Samani-cho, Samani District, Hidaka Subprefecture, Hokkaidō Prefecture, Japan
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About HoromaniteHide

04852060017272471372730.jpg
Horoman kozan open and operational parts

Horoman mine, Horoman peridotite body, Samani-cho, Samani District, Hidaka Subprefecture, Hokkaidō Prefecture, Japan
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

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

Similar NamesHide

HarmuniteA valid IMA mineral speciesCaFe2O4
HermanniteA synonym of Rhodonite

IMA Classification of HoromaniteHide

Classification of HoromaniteHide

Strunz-mindat (2026):
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
Dana 8th ed.:
2.7.2.3

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

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
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

Lustre:
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

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 red
Colour in reflected light:
white with yellowish tint
Internal Reflections:
none
Pleochroism:
Weak
Comments:
white to white with yellowish tint

Chemistry of HoromaniteHide

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

Calculated from ideal end-member formula.
Elements listed:
Fe, Ni, S - search for minerals with similar chemistry

Crystallography of HoromaniteHide

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

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

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

Synonyms of HoromaniteHide

Other Language Names for HoromaniteHide

German:Horomanit
Japanese:幌満鉱

Common AssociatesHide

Associations 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

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.05'UM2007-30-S:Fe'Fe3S2
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.15'UM2002-26-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.15'Manganoshadlunite'(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

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

References for HoromaniteHide

Localities for HoromaniteHide

Showing 7 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.
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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