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Jôkokuite

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About JôkokuiteHide

Formula:
MnSO4 · 5H2O
Colour:
Pink
Lustre:
Vitreous
Hardness:
Crystal System:
Triclinic
Name:
Named in 1978 by M. Nambu, K. Tanida, T. Kitamura, E. Kato for the type locality of Jôkoku mine.
Chalcanthite Group.
Dehydrates to ilesite in dry air.


Classification of JôkokuiteHide

Approved
7.CB.20

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
C : Sulfates (selenates, etc.) without additional anions, with H2O
B : With only medium-sized cations
29.6.7.4

29 : HYDRATED ACID AND NORMAL SULFATES
6 : AXO4·xH2O
25.9.2

25 : Sulphates
9 : Sulphates of Mn

Physical Properties of JôkokuiteHide

Vitreous
Colour:
Pink
Streak:
White
Hardness:
2½ on Mohs scale

Optical Data of JôkokuiteHide

Type:
Biaxial (-)
RI values:
nα = 1.498 nβ = 1.510 nγ = 1.517
2V:
Measured: 70° to 80°, Calculated: 74°
Max Birefringence:
δ = 0.019
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Low
Dispersion:
very weak

Chemical Properties of JôkokuiteHide

Formula:
MnSO4 · 5H2O
IMA Formula:
Mn2+(SO4) · 5H2O

Crystallography of JôkokuiteHide

Crystal System:
Triclinic
Cell Parameters:
a = 6.37 Å, b = 10.77 Å, c = 6.13 Å
α = 98.77°, β = 109.95°, γ = 75.03°
Ratio:
a:b:c = 0.591 : 1 : 0.569
Unit Cell V:
380.94 ų (Calculated from Unit Cell)

Type Occurrence of JôkokuiteHide

Synonyms of JôkokuiteHide

Other Language Names for JôkokuiteHide

Relationship of Jôkokuite to other SpeciesHide

Other Members of this group:
BelogubiteCuZn(SO4)2·10H2OTric. 1 : P1
ChalcanthiteCuSO4 · 5H2OTric. 1 : P1
PentahydriteMgSO4 · 5H2OTric.
SiderotilFeSO4 · 5H2OTric.

Related Minerals - Nickel-Strunz GroupingHide

7.CB.05Dwornikite(Ni,Fe)SO4 · H2OMon. 2/m : B2/b
7.CB.05GunningiteZnSO4 · H2OMon. 2/m : B2/b
7.CB.05KieseriteMgSO4 · H2OMon. 2/m
7.CB.05Poitevinite(Cu,Fe)SO4 · H2OTric.
7.CB.05SzmikiteMnSO4 · H2OMon.
7.CB.05SzomolnokiteFeSO4 · H2OMon. 2/m : B2/b
7.CB.05CobaltkieseriteCoSO4 · H2OMon. 2/m : B2/b
7.CB.07SanderiteMgSO4 · 2H2OOrth. 2 2 2 : P21 21 21
7.CB.10BonattiteCuSO4 · 3H2OMon.
7.CB.15Aplowite(Co,Mn,Ni)SO4 · 4H2OMon. 2/m
7.CB.15Boyleite(Zn,Mg)SO4 · 4H2OMon. 2/m : P21/b
7.CB.15Ilesite(Mn,Zn,Fe)SO4 · 4H2OMon. 2/m
7.CB.15RozeniteFeSO4 · 4H2OMon. 2/m : P21/b
7.CB.15StarkeyiteMgSO4 · 4H2OMon. 2/m : P21/b
7.CB.15DrobeciteCdSO4 · 4H2OMon. 2/m : P21/m
7.CB.15CranswickiteMgSO4 · 4H2OMon. m : Bb
7.CB.20ChalcanthiteCuSO4 · 5H2OTric. 1 : P1
7.CB.20PentahydriteMgSO4 · 5H2OTric.
7.CB.20SiderotilFeSO4 · 5H2OTric.
7.CB.25Bianchite(Zn,Fe)SO4 · 6H2OMon. 2/m : P2/m
7.CB.25Chvaleticeite(Mn,Mg)SO4 · 6H2OMon. 2/m : B2/b
7.CB.25FerrohexahydriteFeSO4 · 6H2OMon. 2/m : B2/b
7.CB.25HexahydriteMgSO4 · 6H2OMon. 2/m : P2/m
7.CB.25Moorhouseite(Co,Ni,Mn)SO4 · 6H2OMon.
7.CB.25Nickelhexahydrite(Ni,Mg,Fe)SO4 · 6H2OMon.
7.CB.30RetgersiteNiSO4 · 6H2OTet. 4 2 2 : P41 21 2
7.CB.35BieberiteCoSO4 · 7H2OMon. 2/m : P2/m
7.CB.35BoothiteCuSO4 · 7H2OMon.
7.CB.35MallarditeMnSO4 · 7H2OMon. 2/m : P2/m
7.CB.35MelanteriteFe2+(H2O)6SO4 · H2OMon. 2/m : P21/b
7.CB.35Zincmelanterite(Zn,Cu,Fe)SO4 · 7H2OMon.
7.CB.35Alpersite(Mg,Cu)[SO4] · 7H2OMon. 2/m : P21/b
7.CB.40EpsomiteMgSO4 · 7H2OOrth. 2 2 2 : P21 21 21
7.CB.40GoslariteZnSO4 · 7H2OOrth. 2 2 2 : P21 21 21
7.CB.40MorenositeNiSO4 · 7H2OOrth. 2 2 2 : P21 21 21
7.CB.45AlunogenAl2(SO4)3 · 17H2OTric. 1
7.CB.45Meta-alunogenAl2(SO4)3 · 12H2O
7.CB.50AluminocoquimbiteFeAl(SO4)3 · 9H2OTrig. 3m (3 2/m) : P3 1c
7.CB.55CoquimbiteFe2-xAlx(SO4)3 · 9H2O, x ~0.5Trig. 3m (3 2/m) : P3 1c
7.CB.55ParacoquimbiteFe2(SO4)3 · 9H2OTrig. 3 : R3
7.CB.55Rhomboclase(H5O2)Fe3+(SO4)2 · 2H2OOrth. mmm (2/m 2/m 2/m) : Pnma
7.CB.60KorneliteFe2(SO4)3 · 7H2OMon. 2/m : P21/m
7.CB.65QuenstedtiteFe2(SO4)3 · 11H2OTric. 1 : P1
7.CB.70LauseniteFe2(SO4)3·5H2OMon. 2/m : P21/m
7.CB.75LishizheniteZnFe2(SO4)4 · 14H2OTric. 1 : P1
7.CB.75RömeriteFe2+Fe3+2(SO4)4 · 14H2OTric. 1 : P1
7.CB.80RansomiteCuFe2(SO4)4 · 6H2OMon. 2/m : P21/b
7.CB.85ApjohniteMn2+Al2(SO4)4 · 22H2OMon.
7.CB.85BíliniteFe2+Fe3+2(SO4)4 · 22H2OMon. 2/m : P21/b
7.CB.85Dietrichite(Zn,Fe2+,Mn2+)Al2(SO4)4 · 22H2OMon. 2/m : P21/b
7.CB.85HalotrichiteFeAl2(SO4)4 · 22H2OMon. 2 : P2
7.CB.85PickeringiteMgAl2(SO4)4 · 22H2OMon. 2/m : P21/b
7.CB.85Redingtonite(Fe2+,Mg,Ni)(Cr,Al)2(SO4)4·22H2OMon.
7.CB.85Wupatkiite(Co,Mg,Ni)Al2(SO4)4·22H2OMon.
7.CB.90MeridianiiteMgSO4 · 11H2OTric. 1 : P1

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

29.6.7.1ChalcanthiteCuSO4 · 5H2OTric. 1 : P1
29.6.7.2SiderotilFeSO4 · 5H2OTric.
29.6.7.3PentahydriteMgSO4 · 5H2OTric.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

25.9.1SzmikiteMnSO4 · H2OMon.
25.9.3MallarditeMnSO4 · 7H2OMon. 2/m : P2/m
25.9.4ManganolangbeiniteK2Mn2(SO4)3Iso. 2 3 : P21 3
25.9.5Chvaleticeite(Mn,Mg)SO4 · 6H2OMon. 2/m : B2/b
25.9.6DespujolsiteCa3Mn4+(SO4)2(OH)6 · 3H2OHex. 6 m2 : P62c
25.9.7ApjohniteMn2+Al2(SO4)4 · 22H2OMon.
25.9.8ShigaiteMn6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2OTrig.
25.9.9Ilesite(Mn,Zn,Fe)SO4 · 4H2OMon. 2/m
25.9.10MooreiteMg92Mn2Zn4(SO4)2(OH)26 · 8H2OMon. 2/m : P2/b
25.9.11Torreyite(Mg,Mn2+)72Mn2+2Zn4(SO4)2(OH)22 · 8H2OMon. 2/m : P21/b
25.9.12Lawsonbauerite(Mn2+,Mg)9Zn4(SO4)2(OH)22 · 8H2OMon. 2/m : P21/b
25.9.13Dietrichite(Zn,Fe2+,Mn2+)Al2(SO4)4 · 22H2OMon. 2/m : P21/b

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 JôkokuiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Nambu, M., Tanida, K., Kitamura, T., Kato, E. (1978) Jôkokuite, MnSO4·5H2O, a new mineral from the Jôkoku mine, Hokkaido, Japan. Mineralogical Journal: 9: 28-38.
Fleischer, M., Mandarino, J.A., Chao, G.Y. (1979) New mineral names. American Mineralogist: 64: 652-659.
Caminiti, R., Marongiu, G., Paschina, G. (1982) A comparative X-ray diffraction study of aqueous MnSO4 and crystals of MnSO4·5H2O. Zeitschrift für Naturforschung A Physical Science: 37: 581-586.

Internet Links for JôkokuiteHide

Localities for JôkokuiteHide

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.
Australia
 
  • Victoria
    • Towong Shire
      • Thologolong
W.D.Birch (2013), A suite of hydrated manganese sulfates from the Womobi mine, northern Victoria, Australia. Australian Journal of Mineralogy, 17/1.; A suite of hydrated manganese sulfates from the Womobi mine, northern Victoria, Australia. W.D.Birch, 2013, Australian Journal of Mineralogy, 17/1.
Czech Republic
 
  • Pardubice Region
Pašava, J., Breiter, K., Huka, M., Korecký, J.: Parageneze druhotných železnatých, hořečnatých a manganatých síranů z Chvaletic. Věstník Ústředního ústavu geologického, 1986, roč. 61, č. 2, s. 73-82.
Japan (TL)
 
  • Hokkaido
    • Oshima peninsula
      • Hiyama Subprefecture
        • Kaminokuni
Nambu et al (1978) Mineralogical Journal, 9, 28-38.
    • Shiribeshi Province
      • Shakotan peninsula
        • Furubira
Matsueda et al (1980) Sanko-Gakkai Kou'en-Youshi, 68.
Papua New Guinea
 
  • Bismarck Sea
    • Manus Basin
Steger, S. (2015): Mineralogical characterisation of a black smoker from the "Vienna woods" hydrothermal field, Manus Basin, Papua New Guinea: complex sulphide ores from a deep-sea hydrothermal system. Master Thesis, University of Vienna, Austria, 50 pp.
Romania
 
  • Alba Co.
    • Roşia Montanã Commune
Onac, B. P. et al. (2003): STUDIA UNIVERSITATIS BABEŞ-BOLYAI, GEOLOGIA, XLVIII, 1, 29-44. [http://bioge.ubbcluj.ro/studia/pdf/2003/Onac.pdf]
Switzerland
 
  • Wallis (Valais)
    • Anniviers Valley
      • Grimentz
Ansermet, S. (2012): Mines et minéraux du Valais - II. Anniviers et Tourtemagne. With contributions by N. Meisser, Ed. Porte-plumes (Ayer)
Mineral and/or Locality  
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