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UM2006-05-O:CaFeKMnNaREESrTiZr

Valid as an unnamed mineral
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Formula:
(Sr,Na,K,REE)(Ca,Zr,Mn)(Ti,Fe)18Fe2O38
Unique combination of elements. Co-described with other unnamed group members: UM2006-06-O:CaFeKMnNaREESrTiZr, UM2006-07-O:CaFeKMnNaREESrTiZr, UM2006-08-O:CaFeKMnNaREESrTiZr, and UM2006-09-O:CaFeMnREESrTiZr.

Ca analogue of crichtonite; ~Ca analogue of dessauite-(Y), mapiquiroite, and UM2006-06-O:CaFeKMnNaREESrTiZr ((without considering the Fe valency).

Note on the locality: "fenitized megaxenolith" within the Khibiny pluton; although the precise localization is not reported, it is almost undoubtedly the Kaskasnyunchorr site based on the listed, very characteristic, associates.

EPMA data for the whole group of unnamed species [wt.%; mean (range)]:

TiO2 68.39 (64.66-73.28)
ZrO2 2.55 (0.74-4.71)
FeO 17.53 (15.49-19.15)
MnO 1.43 (0.28-2.23)
MgO 0.47 (n.d.-0.78)
ZnO 0.12 (n.d.-0.36)
Cr2O3 0.52 (0.25-1.87)
SrO 2.49 (n.d.-4.28)
CaO 1.58 (0.90-2.53)
BaO n.d. (n.d.-0.28)
NiO n.d. (n.d.-1.56)
V2O3 0.46 (0.32-0.60)
Ce2O3 0.98 (n.d.-3.99)
La2O3 0.80 (n.d.-0.35)
Pr2O3 n.d. (n.d.-0.40)
Y2O3 n.d.
Nb2O5 0.42 (0.12-1.06)
ThO2 0.13 (n.d.-0.99)

total 98.89

atoms per formula unit (38 oxygen atoms basis):

Ti 14.81-15.65
Zr 0.11-0.66
Fe 3.86-4.76
Mn 0.07-0.56
Mg 0-0.34
Zn 0-0.08
Cr 0.06-0.45
Sr 0-0.75
Ca 0.29-0.80
Ni 0-0.02
Pb 0-0.04
K 0-0.11
Na 0-0.87
V 0.08-0.14
Ce 0-0.43
La 0-0.36
Nd 0-0.06
Nd 0-0.06
Sm <0.05
Pr <0.05
Nb 0-0.14
Th 0-0.07


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Unique IdentifiersHide

Mindat ID:
54547
Long-form identifier:
mindat:1:1:54547:5
GUID
(UUID V4):
633ddbe9-714c-41ca-98a2-95265ac2fa7f

Classification of UM2006-05-O:CaFeKMnNaREESrTiZrHide

IMA status notes:
Unnamed (probably valid)

Chemical Properties of UM2006-05-O:CaFeKMnNaREESrTiZrHide

Formula:
(Sr,Na,K,REE)(Ca,Zr,Mn)(Ti,Fe)18Fe2O38
Elements listed:
Ca, Fe, K, Mn, Na, O, Sr, Ti, Zr - search for minerals with similar chemistry

Relationship of UM2006-05-O:CaFeKMnNaREESrTiZr to other SpeciesHide

Member of:
Crichtonite Group
Other Members of this group:
AlmeidaitePbZn2(Mn,Y)(Ti,Fe3+)18O37(OH,O)Trig. 3 : R3
BotuobinskiteSrFe2+Mg2(Cr3+6Ti4+12)[O36(OH)2]Trig. 3 : R3
Cleusonite(Pb,Sr)(U4+,U6+)(Fe2+,Zn)2(Ti,Fe2+,Fe3+)18(O,OH)38Trig. 3 : R3
CrichtoniteSr(Mn,Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH)38Trig. 3 : R3
Davidite-(Ce)Ce(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38Trig. 3 : R3
Davidite-(La)La(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38Trig. 3 : R3
Davidite-(Y)(La,Ce,Na,Ca,Pb)(Y,Fe2+,◻)(Fe2+,Mn2+)2(Ti,Fe3+,Nb,Zr)18O38 (hypothetical)Trig.
Dessauite-(Y)(Sr,Pb)(Y,U)(Ti,Fe3+)20O38Trig. 3 : R3
Gramaccioliite-(Y)(Pb,Sr)(Y,Mn)Fe3+2(Ti,Fe3+)18O38Trig. 3 : R3
Haitaite-(La)LaU4+Fe3+2(Ti13Fe2+4Fe3+)O38Trig. 3 : R3
LandauiteNaMnZn2(Ti,Fe)6Ti12O38Trig. 3 : R3
Lindsleyite(Ba,Sr)(Zr,Ca)(Fe,Mg)2(Ti,Cr,Fe)18O38Trig.
Loveringite(Ca,Ce,La)(Zr,Fe)(Mg,Fe)2(Ti,Fe,Cr,Al)18O38Trig. 3 : R3
Mapiquiroite(Sr,Pb)(U,Y)Fe2(Ti,Fe3+,Cr3+)18O38Trig. 3 : R3
Mathiasite(Mg,Cr,Fe,Ca,K)2(Ti,Zr,Cr,Fe)5O12Trig. 3 : R3
Mianningite(◻,Pb,Ce,Na)(U4+,Mn,U6+)Fe3+2 (Ti,Fe3+)18O38Trig. 3 : R3
MirnyiteSrZr4+Mg2(Cr3+6Ti4+12)O38Trig. 3 : R3
PaseroitePbMn2+(Mn2+,Fe3+)2(V5+,Ti,◻)18O38 Trig. 3 : R3
SaranovskiteSrCaFe2+2(Cr4Ti2)Ti12O38Trig. 3 : R3
SenaitePb(Mn,Y,U)(Fe,Zn)2(Ti,Fe,Cr,V)18(O,OH)38Trig. 3 : R3
UM1987-03-O:FePbTiU~(U,Pb)(Ti,Fe3+,Fe2+,Mn)21O38Trig. 3 : R3
UM2003-08-O:AlCaFeREEScTiV(Ca,Ce)Sc(Ti,V,Fe,Al)20O38
UM2006-06-O:CaFeKMnNaREESrTiZr(Sr,Na,K,REE)(Zr,Ca,Mn)(Ti,Fe)18Fe2O38
UM2006-07-O:CaFeKMnNaREESrTiZr(Na,Sr,K,REE)(Ca,Zr,Mn)(Ti,Fe)18Fe2O38
UM2006-08-O:CaFeKMnNaREESrTiZr(Na,Sr,K,REE)(Zr,Ca,Mn)(Ti,Fe)18Fe2O38
UM2006-09-O:CaFeMnREESrTiZr(Ce,Sr,REE)(Ca,Mn,Zr)Fe2(Ti,Fe)18O38
Unnamed (HBU UK-4)NaFe2+Zn2(Ti,Fe3+,Nb)6Ti12O38Trig. 3 : R3

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 UM2006-05-O:CaFeKMnNaREESrTiZrHide

References for UM2006-05-O:CaFeKMnNaREESrTiZrHide

Reference List:
Barkov, A.Y., Fleet, M.E., Martin, R.F., Men'shikov, Y.P. (2006): Sr-Na-REE titanates of the crichtonite group from a fenitized megaxenolith, Khibina alkaline complex, Kola Peninsula, Russia: first occurrence and implications. Eur. J. Mineral.: 18: 493-502; in: Piilonen, P.C., Locock, A.J., Rowe, R., Ercit, T.S. (2007): New mineral names. Am. Mineral.: 92(4): 705
Smith, D.G.W., Nickel, E.H. (2007): A System of Codification for Unnamed Minerals: Report of the SubCommittee for Unnamed Minerals of the IMA Commission on New Minerals, Nomenclature and Classification. Can. Mineral.: 45: 983-1055 (2012 Update); http://nrmima.nrm.se (2016)

Localities for UM2006-05-O:CaFeKMnNaREESrTiZrHide

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 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.
Russia
 
  • Murmansk Oblast
    • Khibiny Massif
Barkov, A.Y., Fleet, M.E., Martin, R.F., Men'shikov, Y.P. (2006): Sr-Na-REE titanates of the crichtonite group from a fenitized megaxenolith, Khibina alkaline complex, Kola Peninsula, Russia: first occurrence and implications. Eur. J. Mineral.: 18: 493-502
in: Piilonen, P.C., Locock, A.J., Rowe, R., Ercit, T.S. (2007): New mineral names. Am. Mineral.: 92(4): 705
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