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Jianshuiite

A valid IMA mineral species
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06800320017848956498420.jpg
Jianshuiite, etc.

Ojos Negros iron mines, Ojos Negros, Teruel, Aragon, Spain
05481760017271924188433.jpg
Jianshuiite

Luzhai Mn deposit, Jianshui County, Honghe, Yunnan, China
07360060017271924218473.jpg
Jianshuiite, etc.

Ojos Negros iron mines, Ojos Negros, Teruel, Aragon, Spain
09251100017836451773816.jpg
Jianshuiite, etc.

Ojos Negros iron mines, Ojos Negros, Teruel, Aragon, Spain
05481760017271924188433.jpg
Jianshuiite

Luzhai Mn deposit, Jianshui County, Honghe, Yunnan, China
07360060017271924218473.jpg
Jianshuiite, etc.

Ojos Negros iron mines, Ojos Negros, Teruel, Aragon, Spain
09251100017836451773816.jpg
Jianshuiite, etc.

Ojos Negros iron mines, Ojos Negros, Teruel, Aragon, Spain
05481760017271924188433.jpg
Jianshuiite

Luzhai Mn deposit, Jianshui County, Honghe, Yunnan, China
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About JianshuiiteHide

Formula:
(Mg,Mn,Ca)Mn3O7 · 3H2O
Colour:
Brown to brownish-black.
Hardness:
1½ - 2
Crystal System:
Trigonal
Name:
Named in 1992 by G. Yan, S. Zhang, M. Zhao, J. Ding, D. Li for Jianshui county which includes the type locality.
In the structure Mg is in the interlayer space, above and below the vacant sites of the Mn-O octahedral sheet. Mg has octahedral coordination, being linked to 3 oxygen atoms of the octahedral layer and 3 ones belonging to interlayer-residing water. Some Ni and maybe Mn2+ may be located at the Mg site.


Unique IdentifiersHide

Mindat ID:
2094
Long-form identifier:
mindat:1:1:2094:3

IMA Classification of JianshuiiteHide

IMA status:
Approved
IMA Formula:
MgMn4+3O7·3H2O
Approval year:
1990

Classification of JianshuiiteHide

Strunz-mindat (2026):
4.FL.20

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
F : Hydroxides (without V or U)
L : Hydroxides with H2O +- (OH); sheets of edge-sharing octahedra
Dana 8th ed.:
7.8.2.3

7 : MULTIPLE OXIDES
8 : AB3X7

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

Physical Properties of JianshuiiteHide

Colour:
Brown to brownish-black.
Hardness:
1½ - 2 on Mohs scale

Chemistry of JianshuiiteHide

Mindat Formula:
(Mg,Mn,Ca)Mn3O7 · 3H2O
Element Weights:
Element% weight
Mn46.406 %
O45.048 %
Mg6.843 %
H1.703 %

Calculated from ideal end-member formula.
Mn
O
Mg
H
Elements listed:
H, Mg, Mn, O - search for minerals with similar chemistry
Common Impurities:
Ca

Crystallography of JianshuiiteHide

Crystal System:
Trigonal
Class (H-M):
3 - Rhombohedral
Space Group:
R3
Cell Parameters:
a = 7.5409(4) Å, c = 20.8079(14) Å
Ratio:
a:c = 1 : 2.759
Unit Cell V:
1024.73 ų

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
6.965 Å(100)
5.539 Å(3)
4.086 Å(8)
3.483 Å(11)
2.449 Å(7)
2.396 Å(6)
2.230 Å(23)
Comments:
Nearly indistinguishable from chalcophanite and
aurorite.

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 7: Great Oxidation Event<2.4
47a : [Near-surface hydration of prior minerals]
47e : [Vanadates, chromates, manganates]

Type Occurrence of JianshuiiteHide

Synonyms of JianshuiiteHide

Other Language Names for JianshuiiteHide

Relationship of Jianshuiite to other SpeciesHide

Member of:
Chalcophanite Group
Other Members of Chalcophanite Group:
AuroriteMn2+Mn4+3O7 · 3H2OTrig. 3 : R3
ChalcophaniteZnMn4+3O7 · 3H2OTrig. 3 : R3
ErnienickeliteNiMn3O7 · 3H2OTrig. 3 : R3

Common AssociatesHide

Associations Based on Photo Data:
4 photos of Jianshuiite associated with SideriteFeCO3
1 photo of Jianshuiite associated with SmithsoniteZnCO3
1 photo of Jianshuiite associated with GoethiteFe3+O(OH)
1 photo of Jianshuiite associated with MagnesiteMgCO3
1 photo of Jianshuiite associated with DolomiteCaMg(CO3)2

Related Minerals - Strunz-mindat GroupingHide

4.FL.TrébeurdeniteFe2+2Fe3+4O2(OH)10CO3 · 3H2OTrig. 3m(32/m) : R3m
4.FL.Mariakrite[Ca4Al2(OH)12(H2O)4][Fe2S4]Tric. 1 : P1
4.FL.05MuskoxiteMg7Fe4O13 · 10H2OTrig. 3m(32/m)
4.FL.05JamboriteNi2+1-xCo3+x(OH)2-x(SO4)x · nH2OTrig. 3m(32/m) : R3m
4.FL.05MössbaueriteFe3+6O4(OH)8[CO3] · 3H2OTrig. 3
4.FL.05MeixneriteMg6Al2(OH)16(OH)2 · 4H2OTrig. 3m(32/m) : R3m
4.FL.05WoodalliteMg6Cr2(OH)16Cl2 · 4H2OTrig. 3m(32/m) : R3m
4.FL.05FougèriteFe2+4Fe3+2(OH)12[CO3] · 3H2OTrig. 3m(32/m) : R3m
4.FL.05DritsiteLi2Al4(OH)12Cl2 · 3H2OHex. 6/mmm(6/m2/m2/m) : P63/mcm
4.FL.05RotemiteCa4Cr2(OH)12Cl2 · 4H2OTrig. 3m(32/m) : R3c
4.FL.05IowaiteMg6Fe3+2(OH)16Cl2 · 4H2OTrig. 3m(32/m) : R3m
4.FL.10HydrocalumiteCa4Al2(OH)12(Cl,CO3,OH)2 · 4H2OMon. 2/m : P2/b
4.FL.15KuzeliteCa4Al2(OH)12[SO4] · 6H2OTrig.
4.FL.20ErnienickeliteNiMn3O7 · 3H2OTrig. 3 : R3
4.FL.20AuroriteMn2+Mn4+3O7 · 3H2OTrig. 3 : R3
4.FL.20ChalcophaniteZnMn4+3O7 · 3H2OTrig. 3 : R3
4.FL.25WoodruffiteZn2+x/2(Mn4+1-xMn3+x)O2 · yH2OMon. 2/m : B2/m
4.FL.30Asbolane(Ni,Co)2-xMn4+(O,OH)4 · nH2OHex.
4.FL.30 va'Lampadite'Cu, Mn, O, H
4.FL.35BuseriteNa4Mn14O27 · 21H2O
4.FL.40Takanelite(Mn,Ca)Mn4O9 · H2OHex.
4.FL.40Ranciéite(Ca,Mn2+)0.2(Mn4+,Mn3+)O2 · 0.6H2OTrig. 3 : P3
4.FL.45Birnessite(Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2OMon. 2/m : B2/m
4.FL.55CianciulliiteMn(Mg,Mn)2Zn2(OH)10 · 2-4H2OMon. 2/m : B2/m
4.FL.60JenseniteCu3[TeO6] · 2H2OMon. 2/m : P21/m
4.FL.65LeisingiteCu2MgTe6+O6 · 6H2OTrig. 3 : P3
4.FL.70Magnesiohongruiite-(Fe3+)(Mg2Fe3+)Fe3+NbO7(OH)Hex. 6mm : P63mc
4.FL.70AkdalaiteAl10O14(OH)2Hex.
4.FL.75CafetiteCaTi2O5 · H2OMon. 2/m : P21/b
4.FL.80MouriteUMo5O12(OH)10Mon. 2/m : P2/b
4.FL.85DeloryiteCu4(UO2)(MoO4)2(OH)6Mon. 2/m : B2/m
4.FL.90LagalyiteCa2xMn1-xO2 · 1.5-2H2OMon.
4.FL.95'Tunnerite'
4.FL.100CarbocalumiteCa4Al2(OH)12(CO3) · 6H2OTrig. 3m(32/m) : R3c
4.FL.100MampsisiteCa4Al2(CO3)(OH)12 · 5H2OTric. 1 : P1

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 JianshuiiteHide

References for JianshuiiteHide

Localities for JianshuiiteHide

Showing 5 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.
Atlantic Ocean
 
  • Walvis Ridge
Post et al. (2016)
Australia
 
  • Western Australia
    • Ngaanyatjarraku Shire
      • West Musgrave Block
        • Wingellina Community (Irrunytju)
Putzolu et al. (2018)
China (TL)
 
  • Yunnan
    • Honghe
      • Jianshui County
Yan Guiyin et al. (1992)
Poland
 
  • Lower Silesian Voivodeship
    • Ząbkowice Śląskie County
      • Gmina Ząbkowice Śląskie
        • Szklary
Pieczka et al. (2015) +2 other references
Spain
 
  • Aragon
    • Teruel
      • Ojos Negros
Calvo Rebollar (2018)
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