La Juli mine, Rodeo de los Molles mining district, Las Chacras, San Martín Department, San Luis Province, Argentinai
| Regional Level Types | |
|---|---|
| La Juli mine | Mine |
| Rodeo de los Molles mining district | Mining District |
| Las Chacras | Municipality |
| San Martín Department | Department |
| San Luis Province | Province |
| Argentina | Country |
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Latitude & Longitude (WGS84):
32° South , 65° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~8km
Type:
Köppen climate type:
Mindat Locality ID:
257387
Long-form identifier:
mindat:1:2:257387:1
GUID (UUID V4):
2e777e72-ac1c-4a57-aa3d-4b207b3e5d42
Name(s) in local language(s):
Mina La Juli, Rodeo de Los Molles, Provincia de San Luis, Argentina
This site was discovered as a result of air radiometric anomalies detected in the area by CNEA. There is mineralization of rare earths and thorium, which identified allanite, britholite, bastnäsite, and cerianite. The britholite-(Ce), brown, appears in compact nuclei reaching measure 8 cm. shown together with allanite-(Ce) and both are partial to completely replaced by bastnäsite-(Ce) or thorbastnäsite. It was characterized through analysis by diffraction X and electron microprobe.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Allanite-(Ce) Formula: (CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH) |
| ⓘ 'Bastnäsite' Formula: (Ce/Nd/Y/REE)(CO3)F |
| ⓘ Bastnäsite-(Ce) Formula: Ce(CO3)F Description: Chemical analysis of the britholite-(Ce):
SiO2: 18,65 %
P2O5: 3,84 %
CaO: 14,65 %
Y2O3: 1,80 %
La2O3:11,50 %
Ce2O3:29,23 %
Pr2O3: 3,09 %
Nd2O3:10,58 %
Sm2O3: 1,04 %
Dy2O3: 0,29 %
ThO2: 0,68 %
F: 1,85 %
H2O: -
Total:97,20 % |
| ⓘ Britholite-(Ce) Formula: (Ce,Ca)5(SiO4)3OH Description: Chemical analysis of the britholite-(Ce):
SiO2: 18,65 %
P2O5: 3,84 %
CaO: 14,65 %
Y2O3: 1,80 %
La2O3:11,50 %
Ce2O3:29,23 %
Pr2O3: 3,09 %
Nd2O3:10,58 %
Sm2O3: 1,04 %
Dy2O3: 0,29 %
ThO2: 0,68 %
F: 1,85 %
H2O: -
Total:97,20 % |
| ⓘ Cerianite-(Ce) Formula: (Ce4+,Th)O2 |
| ⓘ Thorbastnäsite Formula: ThCa(CO3)2F2 · 3H2O |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Cerianite-(Ce) | 4.DL.05 | (Ce4+,Th)O2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Bastnäsite-(Ce) | 5.BD.20a | Ce(CO3)F |
| ⓘ | Thorbastnäsite | 5.BD.20a | ThCa(CO3)2F2 · 3H2O |
| Group 9 - Silicates | |||
| ⓘ | Britholite-(Ce) | 9.AH.25 | (Ce,Ca)5(SiO4)3OH |
| ⓘ | Allanite-(Ce) | 9.BG.05b | (CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH) |
| Unclassified | |||
| ⓘ | 'Bastnäsite' | - | (Ce/Nd/Y/REE)(CO3)F |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Allanite-(Ce) | (CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH) |
| H | ⓘ Britholite-(Ce) | (Ce,Ca)5(SiO4)3OH |
| H | ⓘ Thorbastnäsite | ThCa(CO3)2F2 · 3H2O |
| C | Carbon | |
| C | ⓘ Bastnäsite-(Ce) | Ce(CO3)F |
| C | ⓘ Bastnäsite | (Ce/Nd/Y/REE)(CO3)F |
| C | ⓘ Thorbastnäsite | ThCa(CO3)2F2 · 3H2O |
| O | Oxygen | |
| O | ⓘ Allanite-(Ce) | (CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH) |
| O | ⓘ Bastnäsite-(Ce) | Ce(CO3)F |
| O | ⓘ Bastnäsite | (Ce/Nd/Y/REE)(CO3)F |
| O | ⓘ Britholite-(Ce) | (Ce,Ca)5(SiO4)3OH |
| O | ⓘ Cerianite-(Ce) | (Ce4+,Th)O2 |
| O | ⓘ Thorbastnäsite | ThCa(CO3)2F2 · 3H2O |
| F | Fluorine | |
| F | ⓘ Bastnäsite-(Ce) | Ce(CO3)F |
| F | ⓘ Bastnäsite | (Ce/Nd/Y/REE)(CO3)F |
| F | ⓘ Thorbastnäsite | ThCa(CO3)2F2 · 3H2O |
| Al | Aluminium | |
| Al | ⓘ Allanite-(Ce) | (CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH) |
| Si | Silicon | |
| Si | ⓘ Allanite-(Ce) | (CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH) |
| Si | ⓘ Britholite-(Ce) | (Ce,Ca)5(SiO4)3OH |
| Ca | Calcium | |
| Ca | ⓘ Allanite-(Ce) | (CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH) |
| Ca | ⓘ Britholite-(Ce) | (Ce,Ca)5(SiO4)3OH |
| Ca | ⓘ Thorbastnäsite | ThCa(CO3)2F2 · 3H2O |
| Fe | Iron | |
| Fe | ⓘ Allanite-(Ce) | (CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH) |
| Y | Yttrium | |
| Y | ⓘ Bastnäsite | (Ce/Nd/Y/REE)(CO3)F |
| Ce | Cerium | |
| Ce | ⓘ Allanite-(Ce) | (CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH) |
| Ce | ⓘ Bastnäsite-(Ce) | Ce(CO3)F |
| Ce | ⓘ Bastnäsite | (Ce/Nd/Y/REE)(CO3)F |
| Ce | ⓘ Britholite-(Ce) | (Ce,Ca)5(SiO4)3OH |
| Ce | ⓘ Cerianite-(Ce) | (Ce4+,Th)O2 |
| Nd | Neodymium | |
| Nd | ⓘ Bastnäsite | (Ce/Nd/Y/REE)(CO3)F |
| Th | Thorium | |
| Th | ⓘ Cerianite-(Ce) | (Ce4+,Th)O2 |
| Th | ⓘ Thorbastnäsite | ThCa(CO3)2F2 · 3H2O |
Other Regions, Features and Areas containing this locality
Argentina
- Pampean Pegmatite ProvinceMineral Province
South AmericaContinent
South America PlateTectonic Plate
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References
