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Pseudomorphosed pegmatite, Mount Ulyn Khuren, Khaldzan Buragtag massif, Myangad District, Khovd Province, Mongoliai
| Regional Level Types | |
|---|---|
| Pseudomorphosed pegmatite | Pegmatite |
| Mount Ulyn Khuren | Mountain |
| Khaldzan Buragtag massif | Massif |
| Myangad District | District |
| Khovd Province | Province |
| Mongolia | Country |
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Latitude & Longitude (WGS84):
48° North , 91° East (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~1km
Type:
Kรถppen climate type:
In the beginning of August 1990, an alkaline granitic pegmatite was found by G.S. Ripp on the Northern slope of Mount Ulyn Khuren. It was given the name "Pseudomorphosed" after its enrichment in well-formed pseudomorphoses after an unknown REE-rich (up to 30% REE2O3) eudialyte-group mineral.
In the middle of August 1990 a similar but smaller pegmatite was found by P.M. Kartashov some hundreds m to the east. It obtained the name "Neprimetnyi" (Indiscernible) because of its size and position on mountain slope.
Both pegmatites contain apoeudialyte pseudomorphoses with ferriallanite-(Ce) as one of its main constituents. And both are TL for this mineral.
The pegmatites were produced by intrusion of rare metal alkaline granites of the intrusive phase V and crosscut coarse-grained nordmarkites of the intrusive phase I of the massif.
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Standard Detailed Gallery Strunz Chemical ElementsMineral List
16 valid minerals.
* - Minerals that have never been found, but their existence is inferred in some way (e.g. from pseudomorphs)
Rock Types Recorded
Note: data is currently VERY limited. Please bear with us while we work towards adding this information!
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Alphabetical List Tree DiagramDetailed Mineral List:
| โ Aegirine Formula: NaFe3+Si2O6 References: |
| โ Allanite-(Nd) Formula: (CaNd)(AlAlFe2+)O[Si2O7][SiO4](OH) References: |
| โช Arfvedsonite Formula: [Na][Na2][Fe2+4Fe3+]Si8O22(OH)2 Description: Large (up to 18x8x3.5 cm) arfvedsonite crystals have been found in the quartz core of alkali granite pegmatites on the Northern slope of Mount Ulyn Khuren. The crystals are often twinned. The arfvedsonite is K-rich and has a very low Mg content. References: |
| โ Clinofergusonite-(Y) Formula: YNbO4 References: |
| โ 'Eudialyte Group' Formula: [N(1)N(2)N(3)N(4)N(5)]3[M(1.1)M(1.2)]3[M(2.1)M(2.2)M(2.3)]3-6[M(3)M(4)]Z3[Si24O72]ฮ4X(1)X(2) Description: Known onlั as verั tัpical complex recrัstallized pseudomorphoses up to 5-7 cm. |
| โ Fergusonite-(Y) Formula: YNbO4 References: |
| โ Ferriallanite-(Ce) Formula: (CaCe)(Fe3+AlFe2+)O[Si2O7][SiO4](OH) References: |
| โ Fluorite Formula: CaF2 References: |
| โ Hingganite-(Ce) Formula: (Ce,REE)2(◻,Fe2+)Be2[SiO4]2(OH)2 References: |
| โ Hingganite-(Y) Formula: (Y,REE,Ca)2(◻,Fe2+)Be2[SiO4]2(OH)2 References: |
| โ Kainosite-(Y) Formula: Ca2Y2(SiO3)4(CO3) · H2O References: |
| โ Microcline Formula: K(AlSi3O8) References: |
| โ Orthoclase Formula: K(AlSi3O8) References: |
| โ Percleveite-(Ce) Formula: Ce2Si2O7 References: |
| โ 'Pyrochlore Group' Formula: A2Nb2(O,OH)6Z References: |
| โ 'Pyrochlore Group var. Ceriopyrochlore (of Hogarth 1977)' Formula: (A,Ce)2Nb2(O,OH)6Z References: |
| โ Quartz Formula: SiO2 References: |
| โ Titanite Formula: CaTi(SiO4)O References: |
| โ Zircon Formula: Zr(SiO4) References: |
List of minerals arranged by Strunz 10th Edition classification
| Group 3 - Halides | |||
|---|---|---|---|
| โ | Fluorite | 3.AB.25 | CaF2 |
| Group 4 - Oxides and Hydroxides | |||
| โ | 'Pyrochlore Group var. Ceriopyrochlore (of Hogarth 1977)' | 4.00. | (A,Ce)2Nb2(O,OH)6Z |
| โ | '' | 4.00. | A2Nb2(O,OH)6Z |
| โ | Quartz | 4.DA.05 | SiO2 |
| โ | Clinofergusonite-(Y) | 4.DG.10 | YNbO4 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| โ | Fergusonite-(Y) | 7.GA.05 | YNbO4 |
| Group 9 - Silicates | |||
| โ | Zircon | 9.AD.30 | Zr(SiO4) |
| โ | Titanite | 9.AG.15 | CaTi(SiO4)O |
| โ | Hingganite-(Ce) | 9.AJ.20 | (Ce,REE)2(โป,Fe2+)Be2[SiO4]2(OH)2 |
| โ | Hingganite-(Y) | 9.AJ.20 | (Y,REE,Ca)2(โป,Fe2+)Be2[SiO4]2(OH)2 |
| โ | Percleveite-(Ce) | 9.BC.35 | Ce2Si2O7 |
| โ | Ferriallanite-(Ce) | 9.BG.05b | (CaCe)(Fe3+AlFe2+)O[Si2O7][SiO4](OH) |
| โ | Allanite-(Nd) | 9.BG.05b | (CaNd)(AlAlFe2+)O[Si2O7][SiO4](OH) |
| โ | Kainosite-(Y) | 9.CF.10 | Ca2Y2(SiO3)4(CO3) ยท H2O |
| โ | Aegirine | 9.DA.25 | NaFe3+Si2O6 |
| โ | Arfvedsonite | 9.DE.25 | [Na][Na2][Fe2+4Fe3+]Si8O22(OH)2 |
| โ | Microcline | 9.FA.30 | K(AlSi3O8) |
| โ | Orthoclase | 9.FA.30 | K(AlSi3O8) |
| Unclassified | |||
| โ | 'Eudialyte Group' ? | - | [N(1)N(2)N(3)N(4)N(5)]3[M(1.1)M(1.2)]3[M(2.1)M(2.2)M(2.3)]3-6[M(3)M(4)]Z3[Si24O72]ฮ4X(1)X(2) |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | โ Arfvedsonite | [Na][Na2][Fe42+Fe3+]Si8O22(OH)2 |
| H | โ Pyrochlore Group var. Ceriopyrochlore (of Hogarth 1977) | (A,Ce)2Nb2(O,OH)6Z |
| H | โ Hingganite-(Ce) | (Ce,REE)2(◻,Fe2+)Be2[SiO4]2(OH)2 |
| H | โ Hingganite-(Y) | (Y,REE,Ca)2(◻,Fe2+)Be2[SiO4]2(OH)2 |
| H | โ Kainosite-(Y) | Ca2Y2(SiO3)4(CO3) · H2O |
| H | โ Pyrochlore Group | A2Nb2(O,OH)6Z |
| H | โ Ferriallanite-(Ce) | (CaCe)(Fe3+AlFe2+)O[Si2O7][SiO4](OH) |
| H | โ Allanite-(Nd) | (CaNd)(AlAlFe2+)O[Si2O7][SiO4](OH) |
| Be | Beryllium | |
| Be | โ Hingganite-(Ce) | (Ce,REE)2(◻,Fe2+)Be2[SiO4]2(OH)2 |
| Be | โ Hingganite-(Y) | (Y,REE,Ca)2(◻,Fe2+)Be2[SiO4]2(OH)2 |
| C | Carbon | |
| C | โ Kainosite-(Y) | Ca2Y2(SiO3)4(CO3) · H2O |
| O | Oxygen | |
| O | โ Aegirine | NaFe3+Si2O6 |
| O | โ Arfvedsonite | [Na][Na2][Fe42+Fe3+]Si8O22(OH)2 |
| O | โ Pyrochlore Group var. Ceriopyrochlore (of Hogarth 1977) | (A,Ce)2Nb2(O,OH)6Z |
| O | โ Clinofergusonite-(Y) | YNbO4 |
| O | โ Fergusonite-(Y) | YNbO4 |
| O | โ Hingganite-(Ce) | (Ce,REE)2(◻,Fe2+)Be2[SiO4]2(OH)2 |
| O | โ Hingganite-(Y) | (Y,REE,Ca)2(◻,Fe2+)Be2[SiO4]2(OH)2 |
| O | โ Kainosite-(Y) | Ca2Y2(SiO3)4(CO3) · H2O |
| O | โ Microcline | K(AlSi3O8) |
| O | โ Orthoclase | K(AlSi3O8) |
| O | โ Pyrochlore Group | A2Nb2(O,OH)6Z |
| O | โ Quartz | SiO2 |
| O | โ Titanite | CaTi(SiO4)O |
| O | โ Zircon | Zr(SiO4) |
| O | โ Eudialyte Group | [N(1)N(2)N(3)N(4)N(5)]3[M(1.1)M(1.2)]3[M(2.1)M(2.2)M(2.3)]3-6[M(3)M(4)]Z3[Si24O72]ฮ4X(1)X(2) |
| O | โ Ferriallanite-(Ce) | (CaCe)(Fe3+AlFe2+)O[Si2O7][SiO4](OH) |
| O | โ Percleveite-(Ce) | Ce2Si2O7 |
| O | โ Allanite-(Nd) | (CaNd)(AlAlFe2+)O[Si2O7][SiO4](OH) |
| F | Fluorine | |
| F | โ Fluorite | CaF2 |
| Na | Sodium | |
| Na | โ Aegirine | NaFe3+Si2O6 |
| Na | โ Arfvedsonite | [Na][Na2][Fe42+Fe3+]Si8O22(OH)2 |
| Al | Aluminium | |
| Al | โ Microcline | K(AlSi3O8) |
| Al | โ Orthoclase | K(AlSi3O8) |
| Al | โ Ferriallanite-(Ce) | (CaCe)(Fe3+AlFe2+)O[Si2O7][SiO4](OH) |
| Al | โ Allanite-(Nd) | (CaNd)(AlAlFe2+)O[Si2O7][SiO4](OH) |
| Si | Silicon | |
| Si | โ Aegirine | NaFe3+Si2O6 |
| Si | โ Arfvedsonite | [Na][Na2][Fe42+Fe3+]Si8O22(OH)2 |
| Si | โ Hingganite-(Ce) | (Ce,REE)2(◻,Fe2+)Be2[SiO4]2(OH)2 |
| Si | โ Hingganite-(Y) | (Y,REE,Ca)2(◻,Fe2+)Be2[SiO4]2(OH)2 |
| Si | โ Kainosite-(Y) | Ca2Y2(SiO3)4(CO3) · H2O |
| Si | โ Microcline | K(AlSi3O8) |
| Si | โ Orthoclase | K(AlSi3O8) |
| Si | โ Quartz | SiO2 |
| Si | โ Titanite | CaTi(SiO4)O |
| Si | โ Zircon | Zr(SiO4) |
| Si | โ Eudialyte Group | [N(1)N(2)N(3)N(4)N(5)]3[M(1.1)M(1.2)]3[M(2.1)M(2.2)M(2.3)]3-6[M(3)M(4)]Z3[Si24O72]ฮ4X(1)X(2) |
| Si | โ Ferriallanite-(Ce) | (CaCe)(Fe3+AlFe2+)O[Si2O7][SiO4](OH) |
| Si | โ Percleveite-(Ce) | Ce2Si2O7 |
| Si | โ Allanite-(Nd) | (CaNd)(AlAlFe2+)O[Si2O7][SiO4](OH) |
| K | Potassium | |
| K | โ Microcline | K(AlSi3O8) |
| K | โ Orthoclase | K(AlSi3O8) |
| Ca | Calcium | |
| Ca | โ Fluorite | CaF2 |
| Ca | โ Hingganite-(Y) | (Y,REE,Ca)2(◻,Fe2+)Be2[SiO4]2(OH)2 |
| Ca | โ Kainosite-(Y) | Ca2Y2(SiO3)4(CO3) · H2O |
| Ca | โ Titanite | CaTi(SiO4)O |
| Ca | โ Ferriallanite-(Ce) | (CaCe)(Fe3+AlFe2+)O[Si2O7][SiO4](OH) |
| Ca | โ Allanite-(Nd) | (CaNd)(AlAlFe2+)O[Si2O7][SiO4](OH) |
| Ti | Titanium | |
| Ti | โ Titanite | CaTi(SiO4)O |
| Fe | Iron | |
| Fe | โ Aegirine | NaFe3+Si2O6 |
| Fe | โ Arfvedsonite | [Na][Na2][Fe42+Fe3+]Si8O22(OH)2 |
| Fe | โ Hingganite-(Ce) | (Ce,REE)2(◻,Fe2+)Be2[SiO4]2(OH)2 |
| Fe | โ Hingganite-(Y) | (Y,REE,Ca)2(◻,Fe2+)Be2[SiO4]2(OH)2 |
| Fe | โ Ferriallanite-(Ce) | (CaCe)(Fe3+AlFe2+)O[Si2O7][SiO4](OH) |
| Fe | โ Allanite-(Nd) | (CaNd)(AlAlFe2+)O[Si2O7][SiO4](OH) |
| Y | Yttrium | |
| Y | โ Clinofergusonite-(Y) | YNbO4 |
| Y | โ Fergusonite-(Y) | YNbO4 |
| Y | โ Hingganite-(Y) | (Y,REE,Ca)2(◻,Fe2+)Be2[SiO4]2(OH)2 |
| Y | โ Kainosite-(Y) | Ca2Y2(SiO3)4(CO3) · H2O |
| Zr | Zirconium | |
| Zr | โ Zircon | Zr(SiO4) |
| Nb | Niobium | |
| Nb | โ Pyrochlore Group var. Ceriopyrochlore (of Hogarth 1977) | (A,Ce)2Nb2(O,OH)6Z |
| Nb | โ Clinofergusonite-(Y) | YNbO4 |
| Nb | โ Fergusonite-(Y) | YNbO4 |
| Nb | โ Pyrochlore Group | A2Nb2(O,OH)6Z |
| Ce | Cerium | |
| Ce | โ Pyrochlore Group var. Ceriopyrochlore (of Hogarth 1977) | (A,Ce)2Nb2(O,OH)6Z |
| Ce | โ Hingganite-(Ce) | (Ce,REE)2(◻,Fe2+)Be2[SiO4]2(OH)2 |
| Ce | โ Ferriallanite-(Ce) | (CaCe)(Fe3+AlFe2+)O[Si2O7][SiO4](OH) |
| Ce | โ Percleveite-(Ce) | Ce2Si2O7 |
| Nd | Neodymium | |
| Nd | โ Allanite-(Nd) | (CaNd)(AlAlFe2+)O[Si2O7][SiO4](OH) |
Other Regions, Features and Areas containing this locality
AsiaContinent
- Altai MountainsMountain Range
Eurasian PlateTectonic Plate
- Lake ZoneAccretionary Complex
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Pseudomorphosed pegmatite, Mount Ulyn Khuren, Khaldzan Buragtag massif, Myangad District, Khovd Province, Mongolia