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Unnamed (HBU UK-4)

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About Unnamed (HBU UK-4)Hide

Formula:
NaFe2+Zn2(Ti,Fe3+,Nb)6Ti12O38
Colour:
black
Lustre:
Sub-Metallic
Crystal System:
Trigonal
Member of Crichtonite Group. Fe2+ analogue of Landauite.


Physical Properties of Unnamed (HBU UK-4)Hide

Sub-Metallic
Transparency:
Opaque
Colour:
black

Optical Data of Unnamed (HBU UK-4)Hide

Type:
Anisotropic
Colour in reflected light:
white
Internal Reflections:
none

Chemical Properties of Unnamed (HBU UK-4)Hide

Formula:
NaFe2+Zn2(Ti,Fe3+,Nb)6Ti12O38
Idealised Formula:
NaFe2+Zn2Ti6Ti12O38

Crystallography of Unnamed (HBU UK-4)Hide

Crystal System:
Trigonal
Class (H-M):
3 - Rhombohedral
Space Group:
R3

Relationship of Unnamed (HBU UK-4) to other SpeciesHide

Other Members of this group:
AlmeidaitePbZn2(Mn,Y)(Ti,Fe3+)18O37(OH,O)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,La)(Y,U,Fe)(Ti,Fe)20(O,OH)38Trig. 3 : R3
Davidite-(La)(La,Ce)(Y,U,Fe)(Ti,Fe)20(O,OH)38Trig.
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
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.
Mapiquiroite(Sr,Pb)(U,Y)Fe2(Ti,Fe3+,Cr3+)18O38Trig. 3 : R3
Mathiasite(K, Ba, Sr)(Zr, Fe)(Mg,Fe)2 (Ti,Cr,Fe)18O38Trig.
Mianningite(◻,Pb,Ce,Na)(U4+,Mn,U6+)Fe3+2 (Ti,Fe3+)18O38Trig. 3 : R3
PaseroitePbMn2+(Mn2+,Fe3+)2(V5+,Ti,◻)18O38 Trig. 3 : R3
SenaitePb(Mn,Y,U)(Fe,Zn)2(Ti,Fe,Cr,V)18(O,OH)38Trig.
UM1987-03-O:FePbTiU~(U,Pb)(Ti,Fe3+,Fe2+,Mn)21O38Trig. 3 : R3

Common AssociatesHide

Associated Minerals Based on Photo Data:
Fluorite4 photos of Unnamed (HBU UK-4) associated with Fluorite on mindat.org.
Albite3 photos of Unnamed (HBU UK-4) associated with Albite on mindat.org.
Ceriopyrochlore (of Hogarth 1977)1 photo of Unnamed (HBU UK-4) associated with Ceriopyrochlore (of Hogarth 1977) on mindat.org.

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 Unnamed (HBU UK-4)Hide

Localities for Unnamed (HBU UK-4)Hide

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.
Mongolia
 
  • Hovd Aimag (Khovd Aimag)
    • Altai Mts
Pavel M. Kartashov analytical data
Mineral and/or Locality  
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