Loranskite-(Y)
A valid IMA mineral species - grandfathered
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About Loranskite-(Y)
Formula:
(Y,Ce,Ca)ZrTaO6 (?)
Colour:
Black; greenish yellow (transmitted light)
Lustre:
Sub-Metallic
Hardness:
5
Specific Gravity:
4.6
Member of:
Name:
Named in honor of Apollonie Mikhailovich Loranski (Аполлоний Михайлович Лоранский) (1847-1917), Inspector of the Mining Institute, St. Petersburg, Russia.
Unique Identifiers
Mindat ID:
2435
Long-form identifier:
mindat:1:1:2435:4
GUID
(UUID V4):
(UUID V4):
9a54c7fa-c613-4f4a-b757-f3bfbf70004a
Classification of Loranskite-(Y)
Approved, 'Grandfathered' (first described prior to 1959)
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
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
8.1.5.1
8 : MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
1 : ABO4
8 : MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
1 : ABO4
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Symbol | Source | Reference |
---|---|---|
Lrs-Y | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Loranskite-(Y)
Sub-Metallic
Colour:
Black; greenish yellow (transmitted light)
Streak:
Green-grey
Hardness:
5 on Mohs scale
Tenacity:
Brittle
Fracture:
Conchoidal
Density:
4.6 g/cm3 (Measured)
Optical Data of Loranskite-(Y)
Type:
Isotropic
RI values:
n = 2.06
Birefringence:
Isotropic minerals have no birefringence
Surface Relief:
Very High
Chemical Properties of Loranskite-(Y)
Formula:
(Y,Ce,Ca)ZrTaO6 (?)
IMA Formula:
(Y,Ce,Ca)(Zr,Ta)2O6 (?)
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
Near-surface Processes | |
26 : Hadean detrital minerals | |
Stage 4b: Highly evolved igneous rocks | >3.0 |
34 : Complex granite pegmatites |
Type Occurrence of Loranskite-(Y)
General Appearance of Type Material:
Massive
Relationship of Loranskite-(Y) to other Species
Member of:
Other Members of this group:
Euxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 | Orth. mmm (2/m 2/m 2/m) : Pbcn |
Fersmite | (Ca,Ce,Na)(Nb,Ta,Ti)2(O,OH,F)6 | Orth. mmm (2/m 2/m 2/m) : Pbcn |
Kobeite-(Y) | (Y,U)(Ti,Nb)2(O,OH)6 (?) | Iso. |
Tanteuxenite-(Y) | Y(Ta,Nb,Ti)2(O,OH)6 | Orth. mmm (2/m 2/m 2/m) : Pbcn |
Uranopolycrase | (U4+,Y)(Ti,Nb)2O6 | Orth. mmm (2/m 2/m 2/m) : Pbcn |
Yttrocrasite-(Y) | (Y,Th,Ca,U)(Ti,Fe)2(O,OH)6 | Amor. |
Related Minerals - Strunz-mindat Grouping
4.DG.05 | Euxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
4.DG.05 | Fersmite | (Ca,Ce,Na)(Nb,Ta,Ti)2(O,OH,F)6 |
4.DG.05 | Kobeite-(Y) | (Y,U)(Ti,Nb)2(O,OH)6 (?) |
4.DG.05 | Tanteuxenite-(Y) | Y(Ta,Nb,Ti)2(O,OH)6 |
4.DG.05 | Uranopolycrase | (U4+,Y)(Ti,Nb)2O6 |
4.DG.05 | Yttrocrasite-(Y) | (Y,Th,Ca,U)(Ti,Fe)2(O,OH)6 |
4.DG.10 | Clinofergusonite-(Y) | YNbO4 |
4.DG.10 | Clinofergusonite-(Nd) | (Nd,Ce)NbO4 |
4.DG.10 | Clinofergusonite-(Ce) | CeNbO4 |
4.DG.10 | Yttrotantalite-(Y) | (Y,U,Fe2+)(Ta,Nb)(O,OH)4 |
4.DG.15 | Foordite | Sn2+Nb2O6 |
4.DG.15 | Thoreaulite | Sn2+Ta2O6 |
4.DG.20 | Raspite | Pb(WO4) |
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 Loranskite-(Y)
mindat.org URL:
https://www.mindat.org/min-2435.html
Please feel free to link to this page.
Please feel free to link to this page.
External Links:
Mineral Dealers:
References for Loranskite-(Y)
Reference List:
Localities for Loranskite-(Y)
ⓘ - 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.
All localities listed without proper references should be considered as questionable.
Russia (TL) | |
|
Impilakhti, Pitkyaranta mining district, Republic of Karelia, Russia