Jeppeite
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About Jeppeite
Formula:
(K,Ba)2(Ti,Fe)6O13
Hardness:
5 - 6
Crystal System:
Monoclinic
Name:
Named in 1984 by M.W. Pryce, L.C. Hodge and A.J. Criddle in honor of John Frederik Biccard Jeppe (1920 - ) geologist of Nedlands, Western Australia, who first discovered the mineral.
Type Locality:
Isostructural with:
The K analogue of nixonite.
Classification of Jeppeite
Approved
4/D.07-10
4.CC.50
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
C : Metal: Oxygen = 2: 3,3: 5, and similar
C : With large and 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
C : With large and medium-sized cations
8.7.9.1
8 : MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
7 : Miscellaneous
8 : MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
7 : Miscellaneous
7.9.28
7 : Oxides and Hydroxides
9 : Oxides of Ti
7 : Oxides and Hydroxides
9 : Oxides of Ti
Physical Properties of Jeppeite
Hardness:
5 - 6 on Mohs scale
Optical Data of Jeppeite
Type:
Biaxial
RI values:
nα = 2.130 nβ = 2.210 nγ = 2.350
Max Birefringence:
δ = 0.220
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
Very High
Dispersion:
strong
Chemical Properties of Jeppeite
Formula:
(K,Ba)2(Ti,Fe)6O13
IMA Formula:
(K,Ba)2(Ti,Fe3+)6O13
Crystallography of Jeppeite
Crystal System:
Monoclinic
Cell Parameters:
a = 15.45 Å, b = 3.83 Å, c = 9.12 Å
β = 99.25°
β = 99.25°
Ratio:
a:b:c = 4.034 : 1 : 2.381
Unit Cell V:
532.64 ų (Calculated from Unit Cell)
Type Occurrence of Jeppeite
Synonyms of Jeppeite
Other Language Names for Jeppeite
Related Minerals - Nickel-Strunz Grouping
| 4.CC. | Allendeite | Sc4Zr3O12 | Trig. 3 : R3 |
| 4.CC. | Yttriaite-(Y) | Y2O3 | Iso. |
| 4.CC.05 | Chrombismite | Bi16CrO27 | Tet. |
| 4.CC.10 | Freudenbergite | Na2(Ti,Fe)8O16 | Mon. |
| 4.CC.15 | Grossite | CaAl4O7 | Mon. 2/m : B2/b |
| 4.CC.20 | Chlormayenite | Ca12Al14O32[◻4Cl2] | Iso. 4 3m : I4 3d |
| 4.CC.25 | Yafsoanite | Ca3Zn3(TeO6)2 | Iso. m3 (2/m 3) |
| 4.CC.30 | Latrappite | Ca2NbFe3+O6 | Orth. mmm (2/m 2/m 2/m) : Pnma |
| 4.CC.30 | Lueshite | NaNbO3 | Orth. mmm (2/m 2/m 2/m) |
| 4.CC.30 | Natroniobite | NaNbO3 | Mon. |
| 4.CC.30 | Perovskite | CaTiO3 | Orth. mmm (2/m 2/m 2/m) : Pnma |
| 4.CC.30 | Barioperovskite | BaTiO3 | Orth. mm2 : Amm2 |
| 4.CC.30 | Lakargiite | Ca(Zr,Sn,Ti)O3 | Orth. mmm (2/m 2/m 2/m) : Pnma |
| 4.CC.30 | Megawite | CaSnO3 | Orth. mmm (2/m 2/m 2/m) : Pban |
| 4.CC.35 | Loparite-(Ce) | (Na,REE)Ti2O6 | |
| 4.CC.35 | Macedonite | PbTiO3 | Tet. 4/mmm (4/m 2/m 2/m) : P4/nmm |
| 4.CC.35 | Tausonite | SrTiO3 | Iso. 4 3m |
| 4.CC.35 | Isolueshite | (Na,La)NbO3 | Iso. m3m (4/m 3 2/m) : Pm3m |
| 4.CC.40 | Crichtonite | Sr(Mn,Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH)38 | Trig. 3 : R3 |
| 4.CC.40 | Davidite-(Ce) | (Ce,La)(Y,U,Fe)(Ti,Fe)20(O,OH)38 | Trig. 3 : R3 |
| 4.CC.40 | Davidite-(La) | (La,Ce)(Y,U,Fe)(Ti,Fe)20(O,OH)38 | Trig. |
| 4.CC.40 | Davidite-(Y) | (La,Ce,Na,Ca,Pb)(Y,Fe2+,◻)(Fe2+,Mn2+)2(Ti,Fe3+,Nb,Zr)18O38 (hypothetical) | Trig. |
| 4.CC.40 | Landauite | NaMnZn2(Ti,Fe)6Ti12O38 | Trig. 3 : R3 |
| 4.CC.40 | Lindsleyite | (Ba,Sr)(Zr,Ca)(Fe,Mg)2(Ti,Cr,Fe)18O38 | Trig. |
| 4.CC.40 | Loveringite | (Ca,Ce,La)(Zr,Fe)(Mg,Fe)2(Ti,Fe,Cr,Al)18O38 | Trig. |
| 4.CC.40 | Mathiasite | (K, Ba, Sr)(Zr, Fe)(Mg,Fe)2 (Ti,Cr,Fe)18O38 | Trig. |
| 4.CC.40 | Senaite | Pb(Mn,Y,U)(Fe,Zn)2(Ti,Fe,Cr,V)18(O,OH)38 | Trig. |
| 4.CC.40 | Dessauite-(Y) | (Sr,Pb)(Y,U)(Ti,Fe3+)20O38 | Trig. 3 : R3 |
| 4.CC.40 | Cleusonite | (Pb,Sr)(U4+,U6+)(Fe2+,Zn)2(Ti,Fe2+,Fe3+)18(O,OH)38 | Trig. 3 : R3 |
| 4.CC.40 | Gramaccioliite-(Y) | (Pb,Sr)(Y,Mn)Fe3+2(Ti,Fe3+)18O38 | Trig. 3 |
| 4.CC.45 | Diaoyudaoite | NaAl11O17 | Hex. |
| 4.CC.45 | Hawthorneite | BaMgTi3Cr4Fe2+2Fe3+2O19 | Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc |
| 4.CC.45 | Hibonite | CaAl12O19 | Hex. |
| 4.CC.45 | Lindqvistite | Pb2Mn2+Fe16O27 | Hex. |
| 4.CC.45 | Magnetoplumbite | (Pb,Mn)(Fe,Mn)12O19 | Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc |
| 4.CC.45 | Plumboferrite | Pb2(Fe3+,Mn2+,Mg)11O19 | Trig. 3 2 : P3 1 2 |
| 4.CC.45 | Yimengite | K(Cr,Ti,Fe,Mg)12O19 | Hex. |
| 4.CC.45 | Haggertyite | BaFe2+4Fe3+2Ti5MgO19 | Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc |
| 4.CC.45 | Nežilovite | PbZn2Mn4+2Fe3+8O19 | Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc |
| 4.CC.45 | Batiferrite | BaTi2Fe3+8Fe2+2O19 | Hex. |
| 4.CC.45 | Hibonite-(Fe) | FeAl12O19 | Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc |
| 4.CC.45 | Barioferrite | BaFe3+12O19 | Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc |
| 4.CC.55 | Zenzénite | Pb3Fe4Mn3O15 | Hex. |
| 4.CC.60 | Mengxianminite (of Huang et al.) | (Ca,Na)3(Fe,Mn)2Mg2(Sn,Zn)5Al8O29 |
Related Minerals - Hey's Chemical Index of Minerals Grouping
| 7.9.1 | Hongquiite | TiO | |
| 7.9.2 | Rutile | TiO2 | Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm |
| 7.9.3 | Anatase | TiO2 | Tet. 4/mmm (4/m 2/m 2/m) : I41/amd |
| 7.9.4 | Brookite | TiO2 | Orth. mmm (2/m 2/m 2/m) |
| 7.9.5 | Geikielite | MgTiO3 | Trig. 3 : R3 |
| 7.9.6 | Perovskite | CaTiO3 | Orth. mmm (2/m 2/m 2/m) : Pnma |
| 7.9.7 | Kassite | CaTi2O4(OH)2 | Orth. |
| 7.9.8 | Tausonite | SrTiO3 | Iso. 4 3m |
| 7.9.9 | Crichtonite | Sr(Mn,Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH)38 | Trig. 3 : R3 |
| 7.9.10 | Lucasite-(Ce) | CeTi2(O,OH)6 | Mon. |
| 7.9.11 | Hibonite | CaAl12O19 | Hex. |
| 7.9.12 | Yttrocrasite-(Y) | (Y,Th,Ca,U)(Ti,Fe)2(O,OH)6 | Amor. |
| 7.9.13 | Pyrophanite | Mn2+TiO3 | Trig. 3 : R3 |
| 7.9.14 | Jacobsite-Q | T(Mn2+)M(Fe3+2)O4 | Tet. 4/mmm (4/m 2/m 2/m) : I41/amd |
| 7.9.15 | Ilmenite | Fe2+TiO3 | Trig. 3 : R3 |
| 7.9.16 | Pseudobrookite | Fe2TiO5 | Orth. mmm (2/m 2/m 2/m) |
| 7.9.17 | Ulvöspinel | TiFe2O4 | Iso. m3m (4/m 3 2/m) : Fd3m |
| 7.9.18 | Pseudorutile | Fe2Ti3O9 | Hex. |
| 7.9.19 | Freudenbergite | Na2(Ti,Fe)8O16 | Mon. |
| 7.9.20 | Kennedyite | Fe2TiO5 | |
| 7.9.21 | Armalcolite | (Mg,Fe2+)Ti2O5 | Orth. mmm (2/m 2/m 2/m) |
| 7.9.22 | Högbomite | (Mg,Fe)2(Al,Ti)5O10 | Hex. |
| 7.9.23 | Qandilite | (Mg,Fe3+)2(Ti,Fe3+,Al)O4 | |
| 7.9.24 | Cafetite | CaTi2O5 · H2O | Mon. 2/m : P21/b |
| 7.9.25 | Loveringite | (Ca,Ce,La)(Zr,Fe)(Mg,Fe)2(Ti,Fe,Cr,Al)18O38 | Trig. |
| 7.9.26 | Lindsleyite | (Ba,Sr)(Zr,Ca)(Fe,Mg)2(Ti,Cr,Fe)18O38 | Trig. |
| 7.9.27 | Priderite | K(Ti4+7Fe3+)O16 | Tet. |
| 7.9.29 | Ankangite | Ba(Ti,V3+,Cr)8O16 | Tet. 4/m : I4/m |
| 7.9.30 | Ecandrewsite | (Zn,Fe2+,Mn2+)TiO3 | Trig. 3 : R3 |
| 7.9.31 | Landauite | NaMnZn2(Ti,Fe)6Ti12O38 | Trig. 3 : R3 |
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.
References for Jeppeite
Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Cid-Dresdner, H., Buerger, M.J. (1962) The crystal structure of potassium hexatitanate K2Ti6O13. Zeitschrift für Kristallographie: 117: 411-430.
Bagshaw, A.N., Doran, B.H., White, A.H., Willis, A.C. (1977) Crystal structure of a natural potassium-barium hexatitanate isostructural with K2Ti6O13. Australian Journal of Chemistry: 30: 1195-1200.
Pryce, M.W., Hodge, L.C., Criddle, A.J. (1984) Jeppeite, a new K-Ba-Fe titanate from Walgidee Hills, Western Australia. Mineralogical Magazine: 48: 263-266.
Dunn, P.J., Fleischer, M., Langley, R.H., Shigley, J.E., Zilczer, J.A. (1985) New mineral names. American Mineralogist: 70: 871-881.
Birch, W.D. (1985) A note on large crystals of priderite, jeppeite, wadeite and other minerals from Walgidee [Wolgidee]
Hills, Western Australia. Australian Mineralogist: 50: 298–302.
Internet Links for Jeppeite
mindat.org URL:
https://www.mindat.org/min-2089.html
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Localities for Jeppeite
symbol to view information about a locality.
The Locality List
- 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).
All localities listed without proper references should be considered as questionable.
Australia (TL) | |
| Pryce, M.W, Hodge, L.C., Criddle, A.J. (1984) Jeppeite, a new K-Ba-Fe titanite from Walgidee Hills, Western Australia. Mineralogical Magazine, 48: 263-266. ; Jaques, A. L. (2017) The Walgidee Hills zoned lamproite intrusion, West Kimberley Province, Western Australia. 11th International Kimberlite Conference Extended Abstract No. 11IKC-4489; Dept of Mines WA (1990), Geology and Mineral Resources of WA, GSWA, State Government of WA, 1990 |
| [MinRec 21:561] |
Ivory Coast | |
| Pouclet A. et al. (2004) C.R.Geoscience 336, 9-17 |
USA | |
| AmMin 85:420–429 (2000); Am. Mineral. 83:1323-1329 (1998) |
Walgidee Hills, Noonkanbah Station, Derby-West Kimberley Shire, Western Australia, Australia