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Sinclair Caesium Deposit, Norseman, Dundas Shire, Western Australia, Australiai
| Regional Level Types | |
|---|---|
| Sinclair Caesium Deposit | Deposit (Active) |
| Norseman | Town |
| Dundas Shire | Shire |
| Western Australia | State |
| Australia | Country |
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Latitude & Longitude (WGS84):
31° 54' 33'' South , 121° 38' 15'' East
Latitude & Longitude (decimal):
Type:
Deposit (Active) - last checked 2025
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Norseman | 982 (2012) | 34.7km |
The Sinclair Caesium Deposit is a recent discovery (September 2016) of a significant body of pollucite within a LCT pegmatite, a mineral previously known only in small quantities from two other localities in Australia. The deposit is owned by Pioneer Resources Limited, and is located approximately 40km north of Norseman on the western side of the Norseman-Widgiemooltha sealed road.
The deposit occurs within a large differentiated pegmatite which forms part of a pegmatite swarm adjacent to the Pioneer Dome. The pollucite occurs as an almost monomineralic core zone within the core of the pegmatite, mantled by a larger lepidolite zone. A quartz and or lithium silicate zone occurs either within or adjacent to the pollucite zone. The pollucite zone occurs at a vertical depth of approximately 40 metres below surface, and drill hole intersections of 12 metres of pollucite-rich material were obtained in a drilling programme completed in January 2017. The drill hole data was modelled to yield a total in-situ Measured resource of 10,500 tonnes at 17.1% Cs2O.
Specimens of pollucite in drill core have been donated to the W.A. Museum by Pioneer Resources.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
11 valid minerals.
Detailed Mineral List:
| ⓘ Albite Formula: Na(AlSi3O8) |
| ⓘ Albite var. Cleavelandite Formula: Na(AlSi3O8) |
| ⓘ Amblygonite Formula: LiAl(PO4)F |
| ⓘ 'Apatite' Formula: Ca5(PO4)3(Cl/F/OH) |
| ⓘ Beryl Formula: Be3Al2(Si6O18) |
| ⓘ Beryl var. Aquamarine Formula: Be3Al2Si6O18 |
| ⓘ Beryl var. Goshenite Formula: Be3Al2(Si6O18) |
| ⓘ Beryl var. Morganite Formula: Be3Al2(Si6O18) |
| ⓘ Cookeite Formula: (LiAl4◻)[AlSi3O10](OH)8 |
| ⓘ Eucryptite Formula: LiAlSiO4 References: Simone Conti CollectionIdentification: Dealer/Collection Label, Visual (Fluorescence), Raman Spectroscopy |
| ⓘ 'Feldspar Group' References: |
| ⓘ 'Lepidolite' |
| ⓘ Microcline Formula: K(AlSi3O8) |
| ⓘ Muscovite Formula: KAl2(AlSi3O10)(OH)2 |
| ⓘ Petalite Formula: LiAl(Si4O10) |
| ⓘ Pollucite Formula: (Cs,Na)2(Al2Si4O12) · 2H2O |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Spodumene Formula: LiAlSi2O6 |
| ⓘ 'Tourmaline' Formula: AD3G6(T6O18)(BO3)3X3Z |
| ⓘ 'Zinnwaldite' |
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 8 - Phosphates, Arsenates and Vanadates | |||
| ⓘ | Amblygonite | 8.BB.05 | LiAl(PO4)F |
| Group 9 - Silicates | |||
| ⓘ | Eucryptite | 9.AA.05 | LiAlSiO4 |
| ⓘ | Beryl var. Aquamarine | 9.CJ.05 | Be3Al2Si6O18 |
| ⓘ | 9.CJ.05 | Be3Al2(Si6O18) | |
| ⓘ | var. Morganite | 9.CJ.05 | Be3Al2(Si6O18) |
| ⓘ | var. Goshenite | 9.CJ.05 | Be3Al2(Si6O18) |
| ⓘ | Spodumene | 9.DA.30 | LiAlSi2O6 |
| ⓘ | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| ⓘ | Cookeite | 9.EC.55 | (LiAl4◻)[AlSi3O10](OH)8 |
| ⓘ | Petalite | 9.EF.05 | LiAl(Si4O10) |
| ⓘ | Microcline | 9.FA.30 | K(AlSi3O8) |
| ⓘ | Albite | 9.FA.35 | Na(AlSi3O8) |
| ⓘ | var. Cleavelandite | 9.FA.35 | Na(AlSi3O8) |
| ⓘ | Pollucite | 9.GB.05 | (Cs,Na)2(Al2Si4O12) · 2H2O |
| Unclassified | |||
| ⓘ | 'Feldspar Group' | - | |
| ⓘ | 'Lepidolite' | - | |
| ⓘ | 'Tourmaline' | - | AD3G6(T6O18)(BO3)3X3Z |
| ⓘ | 'Zinnwaldite' | - | |
| ⓘ | 'Apatite' | - | Ca5(PO4)3(Cl/F/OH) |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Cookeite | (LiAl4◻)[AlSi3O10](OH)8 |
| H | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| H | ⓘ Pollucite | (Cs,Na)2(Al2Si4O12) · 2H2O |
| H | ⓘ Zinnwaldite | |
| H | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| Li | Lithium | |
| Li | ⓘ Amblygonite | LiAl(PO4)F |
| Li | ⓘ Cookeite | (LiAl4◻)[AlSi3O10](OH)8 |
| Li | ⓘ Eucryptite | LiAlSiO4 |
| Li | ⓘ Petalite | LiAl(Si4O10) |
| Li | ⓘ Spodumene | LiAlSi2O6 |
| Li | ⓘ Zinnwaldite | |
| Be | Beryllium | |
| Be | ⓘ Beryl var. Aquamarine | Be3Al2Si6O18 |
| Be | ⓘ Beryl | Be3Al2(Si6O18) |
| Be | ⓘ Beryl var. Morganite | Be3Al2(Si6O18) |
| Be | ⓘ Beryl var. Goshenite | Be3Al2(Si6O18) |
| B | Boron | |
| B | ⓘ Tourmaline | AD3G6(T6O18)(BO3)3X3Z |
| O | Oxygen | |
| O | ⓘ Albite | Na(AlSi3O8) |
| O | ⓘ Amblygonite | LiAl(PO4)F |
| O | ⓘ Beryl var. Aquamarine | Be3Al2Si6O18 |
| O | ⓘ Beryl | Be3Al2(Si6O18) |
| O | ⓘ Cookeite | (LiAl4◻)[AlSi3O10](OH)8 |
| O | ⓘ Eucryptite | LiAlSiO4 |
| O | ⓘ Microcline | K(AlSi3O8) |
| O | ⓘ Beryl var. Morganite | Be3Al2(Si6O18) |
| O | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | ⓘ Petalite | LiAl(Si4O10) |
| O | ⓘ Pollucite | (Cs,Na)2(Al2Si4O12) · 2H2O |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Spodumene | LiAlSi2O6 |
| O | ⓘ Tourmaline | AD3G6(T6O18)(BO3)3X3Z |
| O | ⓘ Zinnwaldite | |
| O | ⓘ Beryl var. Goshenite | Be3Al2(Si6O18) |
| O | ⓘ Albite var. Cleavelandite | Na(AlSi3O8) |
| O | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| F | Fluorine | |
| F | ⓘ Amblygonite | LiAl(PO4)F |
| F | ⓘ Zinnwaldite | |
| F | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| Na | Sodium | |
| Na | ⓘ Albite | Na(AlSi3O8) |
| Na | ⓘ Pollucite | (Cs,Na)2(Al2Si4O12) · 2H2O |
| Na | ⓘ Albite var. Cleavelandite | Na(AlSi3O8) |
| Al | Aluminium | |
| Al | ⓘ Albite | Na(AlSi3O8) |
| Al | ⓘ Amblygonite | LiAl(PO4)F |
| Al | ⓘ Beryl var. Aquamarine | Be3Al2Si6O18 |
| Al | ⓘ Beryl | Be3Al2(Si6O18) |
| Al | ⓘ Cookeite | (LiAl4◻)[AlSi3O10](OH)8 |
| Al | ⓘ Eucryptite | LiAlSiO4 |
| Al | ⓘ Microcline | K(AlSi3O8) |
| Al | ⓘ Beryl var. Morganite | Be3Al2(Si6O18) |
| Al | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Al | ⓘ Petalite | LiAl(Si4O10) |
| Al | ⓘ Pollucite | (Cs,Na)2(Al2Si4O12) · 2H2O |
| Al | ⓘ Spodumene | LiAlSi2O6 |
| Al | ⓘ Zinnwaldite | |
| Al | ⓘ Beryl var. Goshenite | Be3Al2(Si6O18) |
| Al | ⓘ Albite var. Cleavelandite | Na(AlSi3O8) |
| Si | Silicon | |
| Si | ⓘ Albite | Na(AlSi3O8) |
| Si | ⓘ Beryl var. Aquamarine | Be3Al2Si6O18 |
| Si | ⓘ Beryl | Be3Al2(Si6O18) |
| Si | ⓘ Cookeite | (LiAl4◻)[AlSi3O10](OH)8 |
| Si | ⓘ Eucryptite | LiAlSiO4 |
| Si | ⓘ Microcline | K(AlSi3O8) |
| Si | ⓘ Beryl var. Morganite | Be3Al2(Si6O18) |
| Si | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | ⓘ Petalite | LiAl(Si4O10) |
| Si | ⓘ Pollucite | (Cs,Na)2(Al2Si4O12) · 2H2O |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Spodumene | LiAlSi2O6 |
| Si | ⓘ Zinnwaldite | |
| Si | ⓘ Beryl var. Goshenite | Be3Al2(Si6O18) |
| Si | ⓘ Albite var. Cleavelandite | Na(AlSi3O8) |
| P | Phosphorus | |
| P | ⓘ Amblygonite | LiAl(PO4)F |
| P | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| Cl | Chlorine | |
| Cl | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| K | Potassium | |
| K | ⓘ Microcline | K(AlSi3O8) |
| K | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| K | ⓘ Zinnwaldite | |
| Ca | Calcium | |
| Ca | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| Fe | Iron | |
| Fe | ⓘ Zinnwaldite | |
| Cs | Caesium | |
| Cs | ⓘ Pollucite | (Cs,Na)2(Al2Si4O12) · 2H2O |
Other Regions, Features and Areas containing this locality
Australia
- Western Australia
- Kambalda Nickel Metallogenic ProvinceGeologic Province
- West Australian ElementCraton
- Yilgarn CratonCraton
Australian PlateTectonic Plate
- West Australian Craton
- Eastern Yilgarn CratonCraton
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Sinclair Caesium Deposit, Norseman, Dundas Shire, Western Australia, Australia