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Liandratite

A valid IMA mineral species
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09261290015943037349981.jpg
Liandratite

Mica Lode Mine, Eight Mile Park Pegmatite Mining District, Fremont County, Colorado, USA
03257560014946656144530.jpg
Liandratite, etc.

Antsakoa I pegmatite, Bekapaika Commune, TsaratanĂ na District, Betsiboka, Madagascar
08644260014946656167589.jpg
Liandratite, etc.

Ivedal, Iveland, Agder, Norway
09261290015943037349981.jpg
Liandratite

Mica Lode Mine, Eight Mile Park Pegmatite Mining District, Fremont County, Colorado, USA
03257560014946656144530.jpg
Liandratite, etc.

Antsakoa I pegmatite, Bekapaika Commune, TsaratanĂ na District, Betsiboka, Madagascar
08644260014946656167589.jpg
Liandratite, etc.

Ivedal, Iveland, Agder, Norway
09261290015943037349981.jpg
Liandratite

Mica Lode Mine, Eight Mile Park Pegmatite Mining District, Fremont County, Colorado, USA
03257560014946656144530.jpg
Liandratite, etc.

Antsakoa I pegmatite, Bekapaika Commune, TsaratanĂ na District, Betsiboka, Madagascar
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About LiandratiteHide

Formula:
U(Nb,Ta)2O8
Colour:
Yellow to yellow-brown
Hardness:
3½
Specific Gravity:
7.0
Crystal System:
Trigonal
Name:
Named in honor of Georges Liandrat, French professor from Samoëns, France, for his noteworthy prospecting activities in Madagascar.
Compare UM1976-11-O:NbU.


Unique IdentifiersHide

Mindat ID:
2391
Long-form identifier:
mindat:1:1:2391:3
GUID
(UUID V4):
8b8a37b7-8d17-401b-8452-1c2a1f08ae56

IMA Classification of LiandratiteHide

Classification of LiandratiteHide

Strunz-mindat (2024):
4.DH.35

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
H : With large (+- medium-sized) cations; sheets of edge-sharing octahedra
Dana 8th ed.:
8.1.9.1

8 : MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
1 : ABO4
Hey's CIM Ref.:
18.3.1

18 : Niobates and Tantalates
3 : Niobates and tantalates containing U but not rare earths

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference
LiaIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of LiandratiteHide

Transparency:
Translucent
Comment:
Described as glassy
Colour:
Yellow to yellow-brown
Streak:
Yellow-white
Hardness:
3½ on Mohs scale
Fracture:
Conchoidal
Density:
7.0 g/cm3 (Measured)    6.87 g/cm3 (Calculated)
Comment:
Measured after heating

Optical Data of LiandratiteHide

Type:
Isotropic
RI values:
n = 1.83
Birefringence:
Isotropic minerals have no birefringence
Surface Relief:
Very High

Chemistry of LiandratiteHide

Mindat Formula:
U(Nb,Ta)2O8
Elements listed:
Nb, O, Ta, U - search for minerals with similar chemistry

Crystallography of LiandratiteHide

Crystal System:
Trigonal
Class (H-M):
3m (3 2/m) - Hexagonal Scalenohedral
Space Group:
P3 1m
Setting:
P3 1m
Cell Parameters:
a = 6.36 Å, c = 4.01 Å
Ratio:
a:c = 1 : 0.631
Unit Cell V:
140.47 ų (Calculated from Unit Cell)
Z:
1

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.18 Å(10)
4.01 Å(8)
2.49 Å(4)
1.838 Å(3)
1.692 Å(2)
1.200 Å(2)
2.00 Å(1)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 4b: Highly evolved igneous rocks>3.0
34 : Complex granite pegmatites
Stage 7: Great Oxidation Event<2.4
47f : [Uranyl (U⁶âș) minerals]
47h : [Near-surface oxidized, dehydrated minerals]

Type Occurrence of LiandratiteHide

Type Locality:
ⓘ Antsakoa I pegmatite, Bekapaika Commune, Tsaratanàna District, Betsiboka, Madagascar
General Appearance of Type Material:
As a 2mm thick metamict crust surrounding petscheckite
Place of Conservation of Type Material:
National Museum of Natural History, Washington, D.C., USA, 14561
Geological Setting of Type Material:
A beryl-columbite subtype LCT granite pegmatite
Associated Minerals at Type Locality:
Petscheckite
Reference:
MĂŒcke, A., Strunz, H. (1978) Petscheckite and liandratite, two new pegmatite minerals from Madagascar. American Mineralogist: 63: 941-946.

Synonyms of LiandratiteHide

Other Language Names for LiandratiteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
6 photos of Liandratite associated with PetscheckiteUFe(Nb,Ta)2O8
3 photos of Liandratite associated with Columbite-(Fe)-Columbite-(Mn) Series
1 photo of Liandratite associated with Fergusonite-(Y)YNbO4

Related Minerals - Strunz-mindat GroupingHide

4.DH.Fluornatropyrochlore(Na,Pb,Ca,REE,U)2Nb2O6FIso. m3m (4/m 3 2/m)
4.DH.Roméite GroupA2(Sb5+)2O6Z
4.DH.Hydroxykenomicrolite(◻,Na,Sb3+)2Ta2O6(OH)Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.Fluornatroroméite(Na,Ca)2Sb2(O,OH)6F
4.DH.OxyplumboroméitePb2Sb2O6OIso. m3m (4/m 3 2/m) : Fd3m
4.DH.Cesiokenopyrochlore◻Nb2(O,OH)6(Cs,◻) Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.Oxyyttrobetafite-(Y)Y2Ti2O6OIso. m3m (4/m 3 2/m) : Fd3m
4.DH.05BranneriteUTi2O6Mon. 2/m : B2/m
4.DH.05OrthobranneriteU4+U6+Ti4O12(OH)2Orth.
4.DH.05Thorutite(Th,U,Ca)Ti2(O,OH)6Mon.
4.DH.10KassiteCaTi2O4(OH)2Mon. 2/m : P21/b
4.DH.10Lucasite-(Ce)CeTi2(O,OH)6Mon.
4.DH.15 vaAlumotungstite◻2W2O6(H2O)Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.15Bismutomicrolite (of Hogarth 1977)Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.15Hydroplumboelsmoreite(Pb,◻)(W,Fe3+)2O6 · H2OIso. m3m (4/m 3 2/m) : Fd3m
4.DH.15Hydropyrochlore(H2O,◻)2Nb2(O,OH)6(H2O)Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.15Plumbomicrolite (of Hogarth 1977)
4.DH.15Stibiomicrolite (of Groat et al.)
4.DH.15Strontiopyrochlore (of Hogarth 1977)A2Nb2(O,OH)6Z
4.DH.15Fluornatromicrolite(Na1.5Bi0.5)Ta2O6FIso. m3m (4/m 3 2/m) : Fd3m
4.DH.15Bismutopyrochlore (of Chukanov et al.)(Bi,Ca,U,Pb)2-xNb2(O,OH)6(OH)Amor.
4.DH.15Hydrokenoelsmoreite◻2W2O6(H2O)Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.15Fluorcalciomicrolite(Ca,Na)2(Ta,Nb)2O6FIso. m3m (4/m 3 2/m) : Fd3m
4.DH.15OxycalciobetafiteCa2(Ti,Nb)2O6O
4.DH.15 vaYttromicrolite (of Hogarth)(Ca,Y3+,U,Na)2-x(Ta,Nb,Ti,Fe3+)2O7Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.15Oxynatropyrochlore(Na,Ca,U)2Nb2O6(O,OH)
4.DH.15Hydroxycalciopyrochlore(Ca,Na,U,◻)2(Nb,Ti)2O6(OH)Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.15Fluorcalciopyrochlore(Ca,Na)2(Nb, Ti)2O6FIso.
4.DH.15OxycalciopyrochloreCa2Nb2O6OIso. m3m (4/m 3 2/m) : Fd3m
4.DH.15Fluorstrontiopyrochlore(Sr,◻)2Nb2(O,OH)6F
4.DH.15OxyplumbopyrochlorePb2Nb2O6O
4.DH.15Kenoplumbopyrochlore(Pb,◻)Nb2O6(◻,O)
4.DH.15Oxyyttropyrochlore-(Y)(Y,◻)2Nb2O6O
4.DH.15Fluorkenopyrochlore(◻,Sr,Ce,Ca,Na)2(Nb,Ti)2O6F
4.DH.15Oxyuranobetafite(U,Ca,◻)2(Ti,Nb)2O6O
4.DH.15OxycalciomicroliteCa2Ta2O6OIso. m3m (4/m 3 2/m) : Fd3m
4.DH.15OxystannomicroliteSn2Ta2O6OIso. m3m (4/m 3 2/m) : Fd3m
4.DH.15Kenoplumbomicrolite(Pb,◻)2Ta2O6(◻,OH,O)Iso.
4.DH.15Oxystibiomicrolite(Sb3+,Ca)2Ta2O6OIso. m3m (4/m 3 2/m) : Fd3m
4.DH.15Hydromicrolite(H2O,◻)2Ta2(O,OH)6(H2O)
4.DH.15Hydrokenomicrolite(◻,H2O)2Ta2(O,OH)6(H2O)Iso. m3m (4/m 3 2/m)
4.DH.15Hydroxymanganopyrochlore(Mn2+,Th,Na,Ca,REE)2(Nb,Ti)2O6(OH) Iso. m3 (2/m 3)
4.DH.15HydroxycalciomicroliteCa1.5Ta2O6(OH)Iso. 4 3 2 : P42 3 2
4.DH.15Fluorplumbopyrochlore(Pb,Y,Th,U,Na,Ca)2-x(Nb,Ti)2O6FIso.
4.DH.15Hydroxyplumbopyrochlore (Pb1.5◻0.5)Nb2O6(OH)Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.15Oxynatromicrolite(Na,Ca,U)2(Ta,Nb)2O6(O,F)Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.15Fluorhydropyrochlore
4.DH.15Hydroxykenoelsmoreite(◻,Pb)2(W,Fe3+,Al)2(O,OH)6(OH)Trig. 3 : R3
4.DH.15Hydrokenopyrochlore(◻,x)2Nb2O6(H2O,Cs)Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.15Hydroxykenopyrochlore(◻,Ce,Ba)2(Nb,Ti)2O6(OH,F)Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.15Hydroxynatropyrochlore(Na,Ca,Ce)2Nb2O6(OH)Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.15Hydroxynatromicrolite(Na,Bi3+,◻)2Ta2O6(OH)Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.15Unnamed (Sb-analogue of Hydroxymanganopyrochlor)(Mn,Ca,Y)2(Sb,Ti)2O6(OH)
4.DH.15Oxybismutomicrolite(Bi1.33◻0.67)ÎŁ2Ta2O6OIso. m3m (4/m 3 2/m) : Fd3m
4.DH.20BindheimitePb2Sb2O6OIso. m3m (4/m 3 2/m) : Fd3m
4.DH.20Hydroxycalcioroméite(Ca,Sb3+)2(Sb5+,Ti)2O6(OH)Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.20MonimolitePb2Sb5+2O7Iso. m3m (4/m 3 2/m)
4.DH.20CuproroméiteCu2Sb2(O,OH)7Iso.
4.DH.20StetefeldtiteAg2Sb2(O,OH)7Iso.
4.DH.20StibiconiteSb3+Sb5+2O6(OH) Iso. m3m (4/m 3 2/m)
4.DH.20FluorcalcioromĂ©ite(Ca,Na,◻)2Sb5+2(O,OH)6FIso. m3m (4/m 3 2/m) : Fd3m
4.DH.20OxycalcioroméiteCa2Sb2O6OIso. m3m (4/m 3 2/m) : Fd3m
4.DH.20HydroxyferroromĂ©ite(Fe2+1.5◻0.5)Sb5+2O6(OH)Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.25RosiaitePbSb5+2O6Trig. 3m (3 2/m) : P3 1m
4.DH.30ZirconoliteCaZrTi2O7Orth.
4.DH.30Laachite(Ca,Mn)2Zr2Nb2TiFeO14Mon. 2/m : B2/b
4.DH.30Nöggerathite-(Ce)(Ce,Ca)2Zr2(Nb,Ti)(Ti,Nb)2Fe2+O14Orth. mmm (2/m 2/m 2/m) : Cmca
4.DH.30Stefanweissite(Ca,REE)2Zr2(Nb,Ti)(Ti,Nb)2Fe2+O14Orth. mmm (2/m 2/m 2/m) : Cmca
4.DH.35PetscheckiteUFe(Nb,Ta)2O8Hex.
4.DH.40IngersoniteCa3Mn2+Sb5+4O14Trig. 3 2 : P31 2 1
4.DH.45PittongiteNa0.22(W,Fe3+)(O,OH)3 · 0.44H2OHex. 6 m2 : P6m2
4.DH.50TazzoliiteBa4-xNaxTi2Nb3SiO17[PO2(OH)2]x(OH)(1-2x) Orth. mmm (2/m 2/m 2/m) : Fmmm

Other InformationHide

Notes:
radioactive
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 LiandratiteHide

References for LiandratiteHide

Localities for LiandratiteHide

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.
Argentina
 
  • San Luis Province
    • San MartĂ­n Department
Galliski et al. (2009) +1 other reference
Australia
 
  • Western Australia
    • Upper Gascoyne Shire
      • Yinnietharra
R Bottrill collection (unconfirmed)
Canada
 
  • QuĂ©bec
    • Nord-du-QuĂ©bec
      • JamĂ©sie
WSP (2017)
Egypt
 
  • Red Sea Governorate
El-Naby (2009)
Helmy
  • South Sinai Governorate
52 (2) +1 other reference
Madagascar (TL)
 
  • Betsiboka
    • TsaratanĂ na District
      • Bekapaika Commune
MĂŒcke et al. (1978)
Norway
 
  • Agder
    • Iveland
Rune S. Selbekk (2010)
  • Telemark
    • Tokke
      • Klauvreid
Larsen. A.O. & Åsheim (2008)
  • Viken
    • Halden
      • Idd
        • Aspedammen
Kristiansen (2006)
Poland
 
  • Lower Silesian Voivodeship
    • Karkonosze County
      • Gmina MysƂakowice
        • Karpniki
Matyszczak (2018)
Matyszczak (2018)
Matyszczak (2018)
        • Krogulec
Matyszczak (2018)
      • Gmina PodgĂłrzyn
        • SosnĂłwka
Matyszczak (2018)
Matyszczak (2018)
        • StaniszĂłw
Matyszczak (2018)
        • ZacheƂmie
Matyszczak (2018)
      • Szklarska Poręba
Matyszczak (2018)
Sweden
 
  • Norrbotten County
    • LuleĂ„
      • RĂ„neĂ„
Pavel.M. Kartashov (n.d.)
USA
 
  • Colorado
    • Fremont County
      • Eight Mile Park Pegmatite Mining District
FĂ€rber (n.d.)
  • Connecticut
    • Middlesex County
      • Portland
Personal collection of Fred E Davis
  • Wisconsin
    • Marathon County
      • Wausau Intrusive Complex
        • Nine Mile Pluton
Cordura
www.uwrf.edu/~wc01
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