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About JeanbandyiteHide

Fe3+xFe2+1-xSn(OH)6-xOx (1 ≥ x > 0.5)
Ideal end-member: Fe3+Sn(OH)5O; originally assumed to be (Fe3+1-x,◻x)(Sn1-y,◻y)(OH)6
brownish orange
Specific Gravity:
Crystal System:
Honouring Mrs. Jean Bandy (1900-1991), who donated to the Los Angeles Natural History Museum the collection on one of whose specimens this new mineral was discovered.
Dimorph of:
Stottite Group. Jeanbandyite and natanite represent the only hydroxide-bearing minerals with dominant Fe and Sn.

Oxidised counterpart of natanite with partially deprotonated oxygen sites. Double perovskite of BB'(OH)6 type. The deprotonated domains have local short-range order.

A dark violet and hard mineral of the (Fe,Mn)(Sn,Ge)(OH)6 composition is reported as "Mineral D" and the Sn-analogue of stottite, from Tsumeb, Namibia (Geier & Ottemann, 1970).

Classification of JeanbandyiteHide

Approval Year:

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
F : Hydroxides (without V or U)
C : Hydroxides with OH, without H2O; corner-sharing octahedra

3 : X(OH)3

7 : Oxides and Hydroxides
11 : Oxides of Sn and Pb

Physical Properties of JeanbandyiteHide

brownish orange
brownish yellow
3½ on Mohs scale
ca. 3.5
{001} and {100}
3.81(5) g/cm3 (Measured)    3.81 g/cm3 (Calculated)

Optical Data of JeanbandyiteHide

Uniaxial (-)
RI values:
nω = 1.837 nε = 1.833
Max Birefringence:
δ = 0.004
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High

Chemical Properties of JeanbandyiteHide

Fe3+xFe2+1-xSn(OH)6-xOx (1 ≥ x > 0.5)

Ideal end-member: Fe3+Sn(OH)5O; originally assumed to be (Fe3+1-x,◻x)(Sn1-y,◻y)(OH)6
IMA Formula:
Common Impurities:

Crystallography of JeanbandyiteHide

Crystal System:
Class (H-M):
4/m - Dipyramidal
Space Group:
Cell Parameters:
a = 7.64 Å, c = 7.64 Å
a:c = 1 : 1
Unit Cell V:
445.94 ų (Calculated from Unit Cell)
New refinement gives cubic cell, space group Pn-3, a=7.6427 or 7.658; on the other hand the stoichiometry (see the current formula) does not fit to such structure

X-Ray Powder DiffractionHide

Powder Diffraction Data:
3.83 (100)
2.71 (70)
1.71 (60)

Type Occurrence of JeanbandyiteHide

Place of Conservation of Type Material:
Los Angeles County Natural History Museum (California)
Geological Setting of Type Material:
Telescoped hydrothermal tin mineralization in a highly altered acid igneous stock.
Associated Minerals at Type Locality:

Synonyms of JeanbandyiteHide

Other Language Names for JeanbandyiteHide

Relationship of Jeanbandyite to other SpeciesHide

Other Members of this group:
NataniteFe2+[Sn(OH)6]Iso. m3m (4/m 3 2/m) : Pn3m
SchoenfliesiteMg[Sn(OH)6]Iso. m3 (2/m 3) : Pn3
WickmaniteMn2+[Sn(OH)6]Iso. m3 (2/m 3) : Pn3

Common AssociatesHide

Associated Minerals Based on Photo Data:
Crandallite3 photos of Jeanbandyite associated with Crandallite on mindat.org.
Wickmanite3 photos of Jeanbandyite associated with Wickmanite on mindat.org.
Stannite3 photos of Jeanbandyite associated with Stannite on mindat.org.
Pyrite3 photos of Jeanbandyite associated with Pyrite on mindat.org.
Wolframite2 photos of Jeanbandyite associated with Wolframite on mindat.org.
Arsenopyrite1 photo of Jeanbandyite associated with Arsenopyrite on mindat.org.
Scorodite1 photo of Jeanbandyite associated with Scorodite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

4.FC.05BernaliteFe(OH)3 · nH2O (n = 0.0 to 0.25)Orth. mmm (2/m 2/m 2/m) : Pmmn
4.FC.10NataniteFe2+[Sn(OH)6]Iso. m3m (4/m 3 2/m) : Pn3m
4.FC.10SchoenfliesiteMg[Sn(OH)6]Iso. m3 (2/m 3) : Pn3
4.FC.10WickmaniteMn2+[Sn(OH)6]Iso. m3 (2/m 3) : Pn3
4.FC.15MopungiteNa[Sb5+(OH)6]Tet. 4/m : P42/n
4.FC.15TetrawickmaniteMn2+[Sn4+(OH)6]Tet. 4/m : P42/n
4.FC.20Ferronigerite-2N1S(Al,Fe,Zn)2(Al,Sn)6O11(OH)Trig. 3m (3 2/m) : P3m1
4.FC.20Magnesionigerite-6N6S(Mg,Al,Zn)3(Al,Sn,Fe)8O15(OH)Trig. 3m (3 2/m) : R3m
4.FC.20Magnesionigerite-2N1S(Mg,Al,Zn)2(Al,Sn)6O11(OH)Trig. 3m (3 2/m) : P3m1
4.FC.20Ferronigerite-6N6S(Al,Fe,Zn)3(Al,Sn,Fe)8O15(OH)Trig. 3m (3 2/m) : R3m
4.FC.20Zinconigerite-2N1S(Zn,Al,Mg)2(Al,Sn)6O11(OH)Trig. 3m (3 2/m) : P3m1
4.FC.20Zinconigerite-6N6S(Zn,Mg,Al)3(Al,Sn,Fe)8O15(OH)Trig. 3m (3 2/m) : R3m
4.FC.25Magnesiotaaffeite-2N’2SMg3Al8BeO16Hex. 6/mmm (6/m 2/m 2/m)

Related Minerals - Dana Grouping (8th Ed.)Hide[Ge4+(OH)6]Tet.[Sn4+(OH)6]Tet. 4/m : P42/n[Sb5+(OH)6]Tet. 4/m : P42/n

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

7.11.2CassiteriteSnO2Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm
7.11.4SchoenfliesiteMg[Sn(OH)6]Iso. m3 (2/m 3) : Pn3
7.11.7WickmaniteMn2+[Sn(OH)6]Iso. m3 (2/m 3) : Pn3
7.11.8TetrawickmaniteMn2+[Sn4+(OH)6]Tet. 4/m : P42/n
7.11.10NataniteFe2+[Sn(OH)6]Iso. m3m (4/m 3 2/m) : Pn3m
7.11.12Ferronigerite-2N1S(Al,Fe,Zn)2(Al,Sn)6O11(OH)Trig. 3m (3 2/m) : P3m1
7.11.14ArgutiteGeO2Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm
7.11.15BrunogeieriteFe2+2Ge4+O4Iso. m3m (4/m 3 2/m) : Fd3m
7.11.19BartelkeitePb(Fe2+Ge)[Ge2O7](OH)2 · H2OMon. 2/m : P21/m
7.11.20MassicotPbOOrth. mmm (2/m 2/m 2/m) : Cmmm
7.11.21LithargePbOTet. 4/mmm (4/m 2/m 2/m) : P4/nmm
7.11.22MiniumPb3O4Tet. 4/mmm (4/m 2/m 2/m) : P42/mbc
7.11.23PlattneritePbO2Tet. 4/mmm (4/m 2/m 2/m)
7.11.25MurdochitePbCu6O8-x(Cl,Br)2x where x<=0.5Iso. m3m (4/m 3 2/m) : Fm3m
7.11.26MacedonitePbTiO3Tet. 4/mmm (4/m 2/m 2/m) : P4/nmm
7.11.28CoronaditePb(Mn4+6Mn3+2)O16Mon. 2/m
7.11.29QuenselitePbMnO2(OH)Mon. 2/m : P2/b
7.11.30PlumboferritePb2(Fe3+,Mn2+,Mg)11O19Trig. 3 2 : P3 1 2

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 JeanbandyiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Geier, B.H., Ottemann, J. (1970) New secondary tin-germanium and primary tungsten-(molybdenum, vanadium-) germanium minerals from the Tsumeb ore-deposit. Neues Jahrb. Mineral. Abhandl.: 114: 89-107.
Fleischer, M. (1971) New mineral names. American Mineralogist: 56: 1487-1489.
Kampf, A.R. (1982) Jeanbandyite, a new member of the stottite group from
Llallagua, Bolivia. Mineralogical Record: 13: 235-239.
Dunn, P.J., Fleischer, M., Burns, R.G., Pabst, A. (1983) New mineral names. American Mineralogist: 68: 471-475.
Betterton, J., Green, D.I., Jewson, C., Spratt, J., Tandy, P. (1998) The composition and structure of jeanbandyite and natanite. Mineralogical Magazine: 62: 707-712.
Anthony, J.W., Bideaux, R.A., Bladh, K.W., Nichols, M.C., Eds. Handbook of Mineralogy, Mineralogical Society of America, Chantilly, VA 20151-1110, USA. http://www.handbookofmineralogy.org/ (2016)
Welch, M.D., Kampf, A.R. (2017) Stoichiometric partially-protonated states in hydroxide perovskites: the jeanbandyite enigma revisited. Mineralogical Magazine: 81: 297-303.
Mitchell, R.H., Welch, M.D., Chakhmouradian, A.R. (2017) Nomenclature of the perovskite supergroup: A hierarchical system of classification based on crystal structure and composition. Mineralogical Magazine: 81: 411-461.

Internet Links for JeanbandyiteHide

Localities for JeanbandyiteHide

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.
Bolivia (TL)
  • Potosí Department
    • Rafael Bustillo Province (Bustillos Province)
      • Llallagua
Kampf, A. R. (1982): Jeanbandyite a new member of the stottite group from Llallagua, Bolivia. Mineralogical Record 13 (4), 235-239.; [MinRec 32:474]
  • New Brunswick
    • Charlotte Co.
      • Saint George Parish
M.E. Ciriotti collection 03.09.2010 (ex Cooke collection); Betterton J, Green D I, Jewson C, Spratt J, Tandy P (1998) The composition and structure of jeanbandyite and natanite. Mineralogical Magazine 62, 707-712
  • Chihuahua
    • Mun. de Aquiles Serdán
      • Santa Eulalia District
        • East Camp
Megaw, P.K.M., 1990b, Geology and geochemistry of the Santa Eulalia mining district, Chihuahua, Mexico.: Unpublished Ph.D. Thesis, Univ. of Arizona, 549 p
        • West Camp
          • Francisco Portillo
Peter Megaw Collection
  • Oshikoto Region (Otjikoto Region)
Geier, B.H., Ottemann, J. (1970): New secondary tin-germanium and primary tungsten-(molybdenum, vanadium-) germanium minerals from the Tsumeb ore-deposit. Neues Jahrb. Mineral. Abhandl.: 114: 89-107; in: Fleischer, M. (1971): New mineral names. American Mineralogist: 56: 1487-1489
  • England
    • Cornwall
      • Callington District
        • Calstock
          • Gunnislake
Weiss, S., Green, D.H., Hooper, J.J. & Elton, N. (2007): Erzgänge und "alpine " klüfte: Die Mineralien des Hingston Quarry, Calstock, Cornwall. LAPIS 32 (11), 13-25; Betterton J, Green D I, Jewson C, Spratt J, Tandy P (1998) The composition and structure of jeanbandyite and natanite. Mineralogical Magazine 62, 707-712
      • Liskeard District
        • St Neot
Martin Stolworthy Collection
      • Perranuthnoe
Specimens collected by David Moulding and now in the collection of D. H. Ifold.
      • St Hilary
[UKJMM 20:7-37]; Betterton J, Green D I, Jewson C, Spratt J, Tandy P (1998) The composition and structure of jeanbandyite and natanite. Mineralogical Magazine 62, 707-712
Mineral and/or Locality  
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