Iseite
A valid IMA mineral species
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Formula:
Mn2Mo3O8
Colour:
Black
Lustre:
Sub-Metallic
Hardness:
4 - 5
Specific Gravity:
5.85 (Calculated)
Crystal System:
Hexagonal
Member of:
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:
Black, sub-metallic, small grains (<20 microns) in 1 mm granular aggregates. The manganese analogue of kamiokite and majindeite.
Unique Identifiers
Mindat ID:
42884
Long-form identifier:
mindat:1:1:42884:0
GUID
(UUID V4):
(UUID V4):
e845d857-c92a-4447-8d7f-60cfe020b132
IMA Classification of Iseite
Approved
Approval year:
2012
First published:
2013
Classification of Iseite
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
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
7.6.3.2
7 : MULTIPLE OXIDES
6 : (AB)5X8
7 : MULTIPLE OXIDES
6 : (AB)5X8
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Symbol | Source | Reference |
---|---|---|
Is | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Iseite
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 Iseite
Anisotropism:
Medium to strong, gray to pale gray
Reflectivity:
Wavelength | R1 | R2 |
---|---|---|
400nm | 19.6% | 16.0% |
420nm | 19.8% | 16.2% |
440nm | 20.7% | 16.6% |
460nm | 20.3% | 16.6% |
470nm | 20.4% | 16.8% |
480nm | 20.4% | 16.8% |
500nm | 20.5% | 16.9% |
520nm | 20.7% | 17.1% |
540nm | 20.4% | 17.1% |
546nm | 20.4% | 17.1% |
560nm | 20.2% | 17.1% |
580nm | 20.1% | 17.2% |
589nm | 20.1% | 16.9% |
600nm | 20.1% | 16.8% |
620nm | 19.7% | 16.8% |
640nm | 19.9% | 17.0% |
650nm | 19.9% | 16.9% |
660nm | 19.6% | 17.0% |
680nm | 20.2% | 17.0% |
700nm | 19.5% | 17.0% |
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. 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 Iseite
Mindat Formula:
Mn2Mo3O8
Elements listed:
Crystallography of Iseite
Crystal System:
Hexagonal
Class (H-M):
6mm - Dihexagonal Pyramidal
Space Group:
P63mc
Cell Parameters:
a = 5.8052 (3) Å
Warning: deg2rad() expects parameter 1 to be float, string given in /home/mindat/www/include.php on line 8763
Unit Cell V:
0.00 ų (Calculated from Unit Cell)
Z:
2
Crystal Structure
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Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
---|---|---|---|---|---|---|---|
0020450 | Iseite | Nishio-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 37-41 | 2013 | Shobu area, Ise City, Mie Prefecture, Japan | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
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) |
Comments:
Author's data
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
High-𝑇 alteration and/or metamorphism | |
32 : Ba/Mn/Pb/Zn deposits, including metamorphic deposits |
Type Occurrence of Iseite
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:
Reference:
Nishio-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: 37-41.
Synonyms of Iseite
Other Language Names for Iseite
Japanese:伊勢鉱
Relationship of Iseite to other Species
Member of:
Other Members of this group:
Kamiokite | Fe2Mo3O8 | Hex. 6mm : P63mc |
Majindeite | Mg2Mo3O8 | Hex. 6mm : P63mc |
Related Minerals - Strunz-mindat Grouping
4.CB. | Ferrohögbomite-2N2S | [(Fe2+,Mg,Zn,Al)3(Al,Ti,Fe3+)8O15(OH)]2 |
4.CB. | Magnesiohögbomite-6N12S | Mg5Al11TiO23(OH) |
4.CB. | Zhenruite | (MoO3)2 · H2O |
4.CB. | Pengite | (Pb8Sb3+3)Σ11Sb5+9O35 |
4.CB. | Virgilluethite | MoO3 · H2O |
4.CB.05 | Brizziite | NaSb5+O3 |
4.CB.05 | Corundum | Al2O3 |
4.CB.05 | Ecandrewsite | (Zn,Fe2+,Mn2+)TiO3 |
4.CB.05 | Eskolaite | Cr2O3 |
4.CB.05 | Geikielite | MgTiO3 |
4.CB.05 | Hematite | Fe2O3 |
4.CB.05 | Ilmenite | Fe2+TiO3 |
4.CB.05 | Karelianite | V3+2O3 |
4.CB.05 | Melanostibite | Mn2+2Fe3+Sb5+O6 |
4.CB.05 | Pyrophanite | Mn2+TiO3 |
4.CB.05 | Akimotoite | (Mg,Fe2+)SiO3 |
4.CB.05 | Auroantimonate | AuSbO3 |
4.CB.05 | UM1998-11-O-AuHSb | Au+2Sb3+O2(OH) |
4.CB.05 | Tistarite | Ti3+2O3 |
4.CB.05 | Unnamed (Fe-Cr Oxide) | FeCrO3 |
4.CB.05 | Hemleyite | (Fe2+0.48Mg0.37Ca0.04Na0.04Mn2+0.03Al0.03Cr3+0.01)sum=1.00Si1.00O3 |
4.CB.10 | Avicennite | Tl2O3 |
4.CB.10 | Bixbyite-(Mn) | Mn3+2O3 |
4.CB.10 | Bixbyite-(Fe) | (Fe,Mn)2O3 |
4.CB.15 | Armalcolite | (Mg,Fe2+)Ti2O5 |
4.CB.15 | Sassite | Ti3+2Ti4+O5 |
4.CB.15 | Pseudobrookite | Fe2TiO5 |
4.CB.15 | Ferropseudobrookite | Fe2+Ti2O5 |
4.CB.15 | Griffinite | Al2TiO5 |
4.CB.15 | Pseudobrookite Group | |
4.CB.20 | Zincohögbomite-2N2S | [(Zn,Al,Fe2+)3(Al,Fe3+,Ti)8O15(OH)]2 |
4.CB.20 | Zincohögbomite-2N6S | [(Zn,Mg)7(Al,Fe3+,Ti)16O31(OH)]2 |
4.CB.20 | Magnesiohögbomite-6N6S | [(Mg,Fe2+)3(Al,Ti,Fe3+)8O15(OH)]6 |
4.CB.20 | Magnesiohögbomite-2N3S | [(Mg,Fe2+,Zn)4(Al,Ti,Fe3+)10O19(OH)]2 |
4.CB.20 | Magnesiohögbomite-2N2S | [(Mg,Fe2+)3[Al7(Ti,Fe3+)]O15(OH)]2 |
4.CB.20 | Ferrohögbomite-6N12S | [(Fe2+,Mg,Zn)5(Al,Ti,Fe3+)12O23(OH)]6 |
4.CB.20 | Magnesiohögbomite-2N4S | (Mg8.43Fe2+1.57)sum=10Al22Ti4+2O46(OH)2 |
4.CB.20 | Magnesiobeltrandoite-2N3S | (Mg6Al2)(Al18Fe3+2)O38(OH)2 |
4.CB.20 | Zincovelesite-6N6S | Zn3(Fe3+,Mn3+,Al,Ti)8O15(OH) |
4.CB.25 | Pseudorutile | Fe2Ti3O9 |
4.CB.25 | Kleberite | FeTi6O11(OH)5 |
4.CB.30 | Berdesinskiite | V3+2TiO5 |
4.CB.30 | Oxyvanite | V3+2V4+O5 |
4.CB.30 | Kaitianite | Ti3+2Ti4+O5 |
4.CB.35 | Olkhonskite | (Cr,V)2Ti3O9 |
4.CB.35 | Schreyerite | V3+2Ti3O9 |
4.CB.35 | Machiite | Al2Ti3O9 |
4.CB.35 | Vestaite | (Ti4+Fe2+)Ti4+3O9 |
4.CB.40 | Kamiokite | Fe2Mo3O8 |
4.CB.40 | Nolanite | V3+8Fe3+2O14(OH)2 |
4.CB.40 | Rinmanite | Zn2Sb2Mg2Fe4O14(OH)2 |
4.CB.40 | Majindeite | Mg2Mo3O8 |
4.CB.45 | Claudetite | As2O3 |
4.CB.45 | Stibioclaudetite | AsSbO3 |
4.CB.50 | Arsenolite | As2O3 |
4.CB.50 | Senarmontite | Sb2O3 |
4.CB.55 | Valentinite | Sb2O3 |
4.CB.60 | Bismite | Bi2O3 |
4.CB.65 | Sphaerobismoite | Bi2O3 |
4.CB.70 | Sillénite | Bi12SiO20 |
4.CB.75 | Kyzylkumite | V3+Ti2O5(OH) |
4.CB.80 | Tietaiyangite | Fe3+4Fe2+TiO9 |
4.CB.85 | Liuite | FeTiO3 |
4.CB.90 | Luogufengite | Fe2O3 |
4.CB.95 | Wangdaodeite | FeTiO3 |
Fluorescence of Iseite
Not fluorescent in UV
Other Information
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 Iseite
mindat.org URL:
https://www.mindat.org/min-42884.html
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References for Iseite
Reference List:
Williams, P. A., Hatert, F., Pasero, M., Mills, S. J. (2012) New minerals and nomenclature modifications approved in 2012. CNMNC Newsletter No 14. Mineralogical Magazine, 76 (5) 1281-1288 doi:10.1180/minmag.2012.076.5.15
Localities for Iseite
Locality List
- 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.
All localities listed without proper references should be considered as questionable.
Japan (TL) | |
| Chunichi Shimbun +4 other references |
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Ise City, Mie Prefecture, Japan