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Iseite

A valid IMA mineral species
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07604190017848826422238.jpg
Iseite

Shobu manganese deposit, Shobu, Ise City, Mie Prefecture, Japan
08763750017624284465271.jpg
Iseite

Shobu manganese deposit, Shobu, Ise City, Mie Prefecture, Japan
09173710017759178444685.jpg
Iseite, etc.

Shobu manganese deposit, Shobu, Ise City, Mie Prefecture, Japan
03324650017825425034972.jpg
Iseite

Shobu manganese deposit, Shobu, Ise City, Mie Prefecture, Japan
07295900017599183485395.jpg
Iseite

Shobu manganese deposit, Shobu, Ise City, Mie Prefecture, Japan
00383850017757437472970.jpg
Iseite, etc.

Shobu manganese deposit, Shobu, Ise City, Mie Prefecture, Japan
07604190017848826422238.jpg
Iseite

Shobu manganese deposit, Shobu, Ise City, Mie Prefecture, Japan
08763750017624284465271.jpg
Iseite

Shobu manganese deposit, Shobu, Ise City, Mie Prefecture, Japan
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About IseiteHide

04169010017272472163583.jpg
Ise City, Honshu Island, Kinki region, Mie Prefecture, Japan

Ise City, Mie Prefecture, Japan
Formula:
Mn2Mo3O8
Colour:
Black
Lustre:
Sub-Metallic
Hardness:
4 - 5
Specific Gravity:
5.85 (Calculated)
Crystal System:
Hexagonal
Name:
Named by Nishio-Hamane Daisuke, Tomita Norimitsu, Minakawa Tetsuo, and Inaba Sachio in 2012 for Ise City, Honshu Island, Kinki region, Mie Prefecture, Japan where the type locality is located.
Isostructural with:
Kamiokite
Black, sub-metallic, small grains (<20 microns) in 1 mm granular aggregates. The manganese analogue of kamiokite and majindeite.


Unique IdentifiersHide

Mindat ID:
42884
Long-form identifier:
mindat:1:1:42884:0

Similar NamesHide

IoziteA synonym of Wüstite
Iserite (of Dana)A synonym of 'Iserine'
Iserite (of Janovsky)A variety of Rutilenear FeTi2O5
ViséiteA variety of Crandallite

IMA Classification of IseiteHide

Classification of IseiteHide

Strunz-mindat (2026):
4.CB.40

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
C : Metal: Oxygen = 2: 3,3: 5, and similar
B : With medium-sized cations
Dana 8th ed.:
7.6.3.2

7 : MULTIPLE OXIDES
6 : (AB)5X8

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

Physical Properties of IseiteHide

Lustre:
Sub-Metallic
Transparency:
Opaque
Colour:
Black
Comment:
Light yellow gray in transmitted light
Streak:
Black
Hardness:
4 - 5 on Mohs scale
Tenacity:
Brittle
Density:
5.85 g/cm3 (Calculated)

Optical Data of IseiteHide

Anisotropism:
Medium to strong, gray to pale gray
Reflectivity:
WavelengthR1 (%)R2 (%)
400nm19.6% 16.0%
420nm19.8% 16.2%
440nm20.7% 16.6%
460nm20.3% 16.6%
470nm20.4% 16.8%
480nm20.4% 16.8%
500nm20.5% 16.9%
520nm20.7% 17.1%
540nm20.4% 17.1%
546nm20.4% 17.1%
560nm20.2% 17.1%
580nm20.1% 17.2%
589nm20.1% 16.9%
600nm20.1% 16.8%
620nm19.7% 16.8%
640nm19.9% 17.0%
650nm19.9% 16.9%
660nm19.6% 17.0%
680nm20.2% 17.0%
700nm19.5% 17.0%


Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 20.7%.
R1 shown in black, R2 shown in red
Colour in reflected light:
light yellowish gray
Internal Reflections:
None
Pleochroism:
Visible
Comments:
Pale grey to yellowish grey

Chemistry of IseiteHide

Mindat Formula:
Mn2Mo3O8
Element Weights:
Element% weight
Mo54.756 %
O24.345 %
Mn20.899 %

Calculated from ideal end-member formula.
Mo
O
Mn
Elements listed:
Mn, Mo, O - search for minerals with similar chemistry

Crystallography of IseiteHide

Crystal System:
Hexagonal
Class (H-M):
6mm - Dihexagonal Pyramidal
Space Group:
P63mc
Cell Parameters:
a = 5.8052(3) Å
Unit Cell V:
0.00 ų (Calculated from Unit Cell)
Z:
2

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0020450IseiteNishio-Hamane D, Tomita N, Minakawa T, Inaba S (2013) Iseite, Mn2Mo3O8, a new mineral from Ise, Mie Prefecture, Japan Journal of Mineralogical and Petrological Sciences 108 37-412013Shobu area, Ise City, Mie Prefecture, Japan0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
5.114 Å(68)
5.027 Å(18)
4.511 Å(25)
3.585 Å(98)
2.903 Å(2)
2.823 Å(35)
2.554 Å(15)
2.523 Å(100)
2.441 Å(90)
2.279 Å(5)
2.256 Å(25)
2.023 Å(50)
1.919 Å(2)
1.900 Å(8)
1.868 Å(17)
1.792 Å(27)
1.705 Å(3)
1.659 Å(44)
1.654 Å(24)
1.615 Å(7)
1.593 Å(35)
1.588 Å(2)
1.525 Å(5)
1.504 Å(8)
1.470 Å(4)
1.451 Å(25)
1.411 Å(6)
1.403 Å(9)
1.396 Å(11)
1.345 Å(6)
1.296 Å(5)
1.291 Å(3)
1.279 Å(3)
1.262 Å(16)
1.257 Å(6)
1.247 Å(7)
1.239 Å(2)
1.224 Å(1)
1.221 Å(2)
1.195 Å(3)
Locality:
Shobu manganese deposit, Shobu, Ise City, Mie Prefecture, Japan
Reference:
Nishio-Hamane, Daisuke, Tomita, Norimitsu, Minakawa, Tetsuo, Inaba, Sachio (2013) Iseite, Mn2Mo3O8, a new mineral from Ise, Mie Prefecture, Japan. Journal of Mineralogical and Petrological Sciences, 108 (1) 37-41 doi:10.2465/jmps.120621c
Comments:
Author's data

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
High-? alteration and/or metamorphism
32 : Ba/Mn/Pb/Zn deposits, including metamorphic deposits

Type Occurrence of IseiteHide

Type Locality:
ⓘ Shobu manganese deposit, Shobu, Ise City, Mie Prefecture, Japan
General Appearance of Type Material:
Zoned aggregates (up to ~1 mm) of minute anhedral crystals of a several micrometers to 20 μm.
Place of Conservation of Type Material:
National Museum of Nature and Science, Tsukuba, Japan, specimen number NSMM-43652
Geological Setting of Type Material:
Manganese deposit.
Associated Minerals at Type Locality:
Allanite GroupBementiteCaryopiliteChalcopyriteHeazlewoodite
HematiteMagnetiteMolybdeniteMonazite-(La)Pentlandite
RhodochrositeTephroite
Reference:
Nishio-Hamane, Daisuke, Tomita, Norimitsu, Minakawa, Tetsuo, Inaba, Sachio (2013) Iseite, Mn2Mo3O8, a new mineral from Ise, Mie Prefecture, Japan. Journal of Mineralogical and Petrological Sciences, 108 (1) 37-41 doi:10.2465/jmps.120621c

Synonyms of IseiteHide

Other Language Names for IseiteHide

Dutch:Iseiet
German:Iseit
Japanese:伊勢鉱

Relationship of Iseite to other SpeciesHide

Member of:
Kamiokite Group > Nolanite Supergroup
Other Members of Kamiokite Group:
KamiokiteFe2Mo3O8Hex. 6mm : P63mc
MajindeiteMg2Mo3O8Hex. 6mm : P63mc

Common AssociatesHide

Associations Based on Photo Data:
1 photo of Iseite associated with RhodochrositeMnCO3
1 photo of Iseite associated with HematiteFe2O3
1 photo of Iseite associated with MagnetiteFe2+Fe3+2O4

Related Minerals - Strunz-mindat GroupingHide

4.CB.Magnesiohögbomite-6N12SMg5Al11TiO23(OH)Trig. 3m(32/m) : R3m
4.CB.KidoditeBaMg2Fe16O27Hex. 6/mmm(6/m2/m2/m) : P63/mmc
4.CB.Ferrohögbomite-2N2S[(Fe2+,Mg,Zn,Al)3(Al,Ti,Fe3+)8O15(OH)]2Hex. 6mm : P63mc
4.CB.Zhenruite(MoO3)2 · H2OMon. 2/m : P21/m
4.CB.FuyuaniteMg7Nb6O18(OH)8Trig. 3 : P3
4.CB.VirgilluethiteMoO3 · H2OMon. 2/m : P21/b
4.CB.Pengite(Pb8Sb3+3)Σ11Sb5+9O35Trig. 3m(32/m) : R3m
4.CB.05BrizziiteNaSb5+O3Trig. 3 : R3
4.CB.05TistariteTi3+2O3Trig. 3m(32/m) : R3c
4.CB.05HematiteFe2O3Trig. 3m(32/m) : R3c
4.CB.05EcandrewsiteZnTiO3Trig. 3 : R3
4.CB.05MelanostibiteMn2+2Fe3+Sb5+O6Trig. 3 : R3
4.CB.05'UM1998-11-O-AuHSb'Au+2Sb3+O2(OH)
4.CB.05KarelianiteV3+2O3Trig. 3m(32/m) : R3c
4.CB.05CorundumAl2O3Trig. 3m(32/m) : R3c
4.CB.05EskolaiteCr2O3Trig. 3m(32/m) : R3c
4.CB.05GeikieliteMgTiO3Trig. 3 : R3
4.CB.05AkimotoiteMgSiO3Trig. 3 : R3
4.CB.05'Unnamed (Fe-Cr Oxide)'FeCrO3Trig. 3 : R3
4.CB.05'Auroantimonate'AuSbO3
4.CB.05HemleyiteFe2+SiO3Trig. 3 : R3
4.CB.05IlmeniteFe2+TiO3Trig. 3 : R3
4.CB.05PyrophaniteMn2+TiO3Trig. 3 : R3
4.CB.10Bixbyite-(Fe)(Fe,Mn)2O3Iso.
4.CB.10Bixbyite-(Mn)Mn3+2O3Iso. m3(2/m3) : Ia3
4.CB.10AvicenniteTl3+2O3Iso. m3(2/m3) : Ia3
4.CB.15ArmalcoliteMgTi4+2O5Orth. mmm(2/m2/m2/m)
4.CB.15FerropseudobrookiteFe2+Ti4+2O5Orth. mmm(2/m2/m2/m) : Cmcm
4.CB.15GriffiniteAl2Ti4+O5Orth. mmm(2/m2/m2/m) : Cmcm
4.CB.15Pseudobrookite Group
4.CB.15SassiteTi3+2Ti4+O5Orth. mmm(2/m2/m2/m) : Cmcm
4.CB.15PseudobrookiteFe3+2Ti4+O5Orth. mmm(2/m2/m2/m) : Cmcm
4.CB.20Zincovelesite-6N6SZn3(Fe3+,Mn3+,Al,Ti)8O15(OH)Trig. 3m(32/m) : P3m1
4.CB.20Magnesiohögbomite-2N4S(Mg8.43Fe2+1.57)Σ=10Al22Ti4+2O46(OH)2Hex. 6mm : P63mc
4.CB.20Magnesiobeltrandoite-2N3S(Mg6Al2)(Al18Fe3+2)O38(OH)2 Trig. 3m : P3m1
4.CB.20Zincohögbomite-2N6S[(Zn,Mg)7(Al,Fe3+,Ti)16O31(OH)]2Hex. 6mm : P63mc
4.CB.20Magnesiohögbomite-6N6S[(Mg,Fe2+)3(Al,Ti,Fe3+)8O15(OH)]6Trig. 3m(32/m) : R3m
4.CB.20Magnesiohögbomite-2N3S[(Mg,Fe2+,Zn)4(Al,Ti,Fe3+)10O19(OH)]2Trig. 3m(32/m) : P31m
4.CB.20Magnesiohögbomite-2N2S[(Mg,Fe2+)3[Al7(Ti,Fe3+)]O15(OH)]2Hex. 6mm : P63mc
4.CB.20'Ferrohögbomite-6N12S'[(Fe2+,Mg,Zn)5(Al,Ti,Fe3+)12O23(OH)]6Trig. 3m(32/m) : R3m
4.CB.20Zincohögbomite-2N2S[(Zn,Al,Fe2+)3(Al,Fe3+,Ti)8O15(OH)]2Hex. 6mm : P63mc
4.CB.25KleberiteFeTi6O11(OH)5Mon. 2/m : P21/b
4.CB.25PseudorutileFe3+2Ti4+3O9Hex. 622 : P6322
4.CB.30OxyvaniteV3+2V4+O5Mon. 2/m : B2/b
4.CB.30BerdesinskiiteV3+2TiO5Mon.
4.CB.30KaitianiteTi3+2Ti4+O5Mon. 2/m : B2/b
4.CB.35MachiiteAl2Ti3O9Mon. 2/m : B2/b
4.CB.35Vestaite(Ti4+Fe2+)Ti4+3O9Mon. 2/m : B2/b
4.CB.35Olkhonskite(Cr,V)2Ti3O9Mon.
4.CB.35SchreyeriteV3+2Ti4+3O9Mon. 2/m : B2/b
4.CB.40Zincorinmanite-(Zn)Zn2Sb2(Fe3+4Zn2)O14(OH)2Hex. 6mm : P63mc
4.CB.40MajindeiteMg2Mo3O8Hex. 6mm : P63mc
4.CB.40AlmagreraiteCuZnMn4+3O8Orth. mm2 : Pmn21
4.CB.40KamiokiteFe2Mo3O8Hex. 6mm : P63mc
4.CB.40NolaniteV3+8Fe3+2O14(OH)2Hex. 6mm : P63mc
4.CB.40RinmaniteZn2Sb2Mg2Fe4O14(OH)2Hex. 6 : P63
4.CB.45StibioclaudetiteAsSbO3Mon. 2/m : P21/m
4.CB.45ClaudetiteAs2O3Mon. 2/m
4.CB.50SenarmontiteSb2O3Iso. m3m(4/m32/m) : Fd3m
4.CB.50ArsenoliteAs2O3Iso. m3m(4/m32/m) : Fd3m
4.CB.55ValentiniteSb2O3Orth. mmm(2/m2/m2/m) : Pccn
4.CB.60BismiteBi2O3Mon. 2/m : P21/b
4.CB.65SphaerobismoiteBi2O3Tet.
4.CB.70SilléniteBi12SiO20Iso. 23 : I23
4.CB.75KyzylkumiteV3+Ti2O5(OH)Mon. 2/m : P21/b
4.CB.80'Tietaiyangite'Fe3+4Fe2+TiO9Hex.
4.CB.85LiuiteFeTiO3Orth. mmm(2/m2/m2/m) : Pnma
4.CB.90LuogufengiteFe2O3Orth. mm2 : Pna21
4.CB.95WangdaodeiteFeTiO3Trig. 3m : R3c

Fluorescence of IseiteHide

In UV light:
Not fluorescent in UV

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 IseiteHide

References for IseiteHide

Localities for IseiteHide

Showing 1 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.
Japan (TL)
 
  • Mie Prefecture
    • Ise City
      • Shobu
Chunichi Shimbun +4 other references
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