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Loranskite-(Y)

Formula:
(Y,Ce,Ca)ZrTaO
 
6
 (?)
Colour:Black; greenish yellow ...Hardness:5
Name:After A.M. Loranski, Inspector of the Mining Institute, St. Petersburg, Russia.


An ill-defined material.
(See http://www.mindat.org/mesg-7-88239.html.)

Classification of Loranskite-(Y)

IMA status:Approved
Strunz 8th edition ID:4/D.19-100
Nickel-Strunz 10th (pending) edition ID:4.DG.05

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
G : With large (+- medium-sized) cations; chains of edge-sharing octahedra
Dana 8th edition ID:8.1.5.1

8 : MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
1 : ABO4
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Type Occurrence of Loranskite-(Y)

Type Locality:Impilakhti, Pitkyaranta (Pitkäranta) District, Ladoga Region, Karelia Republic, Northern Region, Russia

Physical Properties of Loranskite-(Y)

Lustre:Sub-Metallic
Colour:Black; greenish yellow (transmitted light)
Streak:Green-grey
Hardness (Mohs):5
Tenacity:Brittle
Fracture:Conchoidal
Density (measured):4.6 g/cm3

Chemical Properties of Loranskite-(Y)

Formula:
(Y,Ce,Ca)ZrTaO
 
6
 (?)
Essential elements:O, Ta, Y, Zr
All elements listed in formula:Ca, Ce, O, Ta, Y, Zr

Relationship of Loranskite-(Y) to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
4.DG.05Euxenite-(Y)
(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)
 
2
O
 
6
4.DG.05Fersmite
(Ca,Ce,Na)(Nb,Ta,Ti)
 
2
(O,OH,F)
 
6
4.DG.05Kobeite-(Y)
(Y,Zr)
 
2
(Ti,Fe
3+
 
)
 
2
(O,OH)
 
7
4.DG.05Polycrase-(Y)
(Y,U)(Ti,Nb)
 
2
O
 
6
4.DG.05Tanteuxenite-(Y)
(Y,Ce,Ca)(Ta,Nb,Ti)
 
2
(O,OH)
 
6
4.DG.05Uranopolycrase
(U
4+
 
,Y)(Ti,Nb)
 
2
O
 
6
4.DG.05Yttrocrasite-(Y)
(Y,Th,Ca,U)(Ti,Fe)
 
2
(O,OH)
 
6
4.DG.10β-Fergusonite-(Y)
YNbO
 
4
4.DG.10β-Fergusonite-(Nd)
(Nd,Ce)NbO
 
4
4.DG.10β-Fergusonite-(Ce)
(Ce,La,Nd)NbO
 
4
4.DG.10Yttrotantalite-(Y)
(Y,Ca,U
4+
 
,Fe
2+
 
)
 
2
(Ta,Nb)
 
2
O
 
8
4.DG.10Beta-Fergusonite-(Nd)
4.DG.15Foordite
(Sn,Pb)(Nb,Ta)
 
2
O
 
6
4.DG.15Thoreaulite
SnTa
 
2
O
 
6
4.DG.20Raspite
PbWO
 
4

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Loranskite-(Y)

Reference List:Melnikov (1899), Zs. Kr.: 31: 505.

Borgström (1910), Geol. För. Förh.: 32, 3, 1531.

Comptes Rendus Hebdomadaires des Séances de l’ Académie des Sciences de Paris: 250: 3032-3034.

Palache, Charles, Harry Berman & Clifford Frondel (1944), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Volume I: Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, Inc., New York. 7th edition, revised and enlarged: 767.

Anthony, J.W., Bideaux, R.A., Bladh, K.W. and Nichols, M.C. (1997) Handbook of Mineralogy, Volume III. Halides, Hydroxides, Oxides. Mineral Data Publishing, Tucson, AZ, 628pp.

Strunz-Nickel (2001): 219.

Internet Links for Loranskite-(Y)

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    Localities for Loranskite-(Y)

    (TL) indicates type locality. ? 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.
    Russia
     
    • Northern Region
      • Karelia Republic
        • Ladoga Region
          • Pitkyaranta (Pitkäranta) District
    		J.W. Anthony, R.A. Bideaux, K.W. Bladh, M.C. Nichols: Handbook of Mineralogy, Vol. III (1997)
    Mineral and/or Locality
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