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Unnamed (HBU UK-4)

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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)

Sub-Metallic
Transparency:
Opaque
Colour:
black

Optical Data of Unnamed (HBU UK-4)

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

Chemical Properties of Unnamed (HBU UK-4)

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

Crystallography of Unnamed (HBU UK-4)

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

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

Other Members of this group:
AlmeidaitePbZn2(Mn,Y)(Ti,Fe3+)18O37(OH,O)
Cleusonite(Pb,Sr)(U4+,U6+)(Fe2+,Zn)2(Ti,Fe2+,Fe3+)18(O,OH)38
CrichtoniteSr(Mn,Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH)38
Davidite-(Ce)(Ce,La)(Y,U,Fe)(Ti,Fe)20(O,OH)38
Davidite-(La)(La,Ce)(Y,U,Fe)(Ti,Fe)20(O,OH)38
Davidite-(Y)(La,Ce,Na,Ca,Pb)(Y,Fe2+,◻)(Fe2+,Mn2+)2(Ti,Fe3+,Nb,Zr)18O38 (hypothetical)
Dessauite-(Y)(Sr,Pb)(Y,U)(Ti,Fe3+)20O38
Gramaccioliite-(Y)(Pb,Sr)(Y,Mn)Fe3+2(Ti,Fe3+)18O38
LandauiteNaMnZn2(Ti,Fe)6Ti12O38
Lindsleyite(Ba,Sr)(Zr,Ca)(Fe,Mg)2(Ti,Cr,Fe)18O38
Loveringite(Ca,Ce,La)(Zr,Fe)(Mg,Fe)2(Ti,Fe,Cr,Al)18O38
Mapiquiroite(Sr,Pb)(U,Y)Fe2(Ti,Fe3+,Cr3+)18O38
Mathiasite(K, Ba, Sr)(Zr, Fe)(Mg,Fe)2 (Ti,Cr,Fe)18O38
Mianningite(◻,Pb,Ce,Na)(U4+,Mn,U6+)Fe3+2 (Ti,Fe3+)18O38
PaseroitePbMn2+(Mn2+,Fe3+)2(V5+,Ti,◻)18O38
SenaitePb(Mn,Y,U)(Fe,Zn)2(Ti,Fe,Cr,V)18(O,OH)38
UM1987-03-O:FePbTiU~(U,Pb)(Ti,Fe3+,Fe2+,Mn)21O38

Common Associates

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 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.

Internet Links for Unnamed (HBU UK-4)

mindat.org URL:
https://www.mindat.org/min-38927.html
Please feel free to link to this page.

Localities for Unnamed (HBU UK-4)

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
Mongolia
 
  • Hovd Aimag (Khovd Aimag)
    • Altai Mts
Pavel M. Kartashov analytical data
Mineral and/or Locality  
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