Santo Inácio River valley, Coromandel, Coromandel mining district, Minas Gerais, Brazili
| Regional Level Types | |
|---|---|
| Santo Inácio River valley | Valley |
| Coromandel | - not defined - |
| Coromandel mining district | Mining District |
| Minas Gerais | State |
| Brazil | Country |
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Latitude & Longitude (WGS84):
18° 32' 39'' South , 47° 1' 50'' West
Latitude & Longitude (decimal):
Locality type:
Köppen climate type:
Other/historical names associated with this locality:
Rio Santo Inácio
At least eleven diamond quarries (called "garimpos" in Brazil), both active and inactive, were reported by Fernandes et al. (2014) in the valley of the Santo Inácio river between 8 and 28 km generally to the southeast of Coromandel. The geographic coordinates provided correspond to the largest site affected by quarrying operations visible on satellite imagery, but individual sites are spread out along the course of the river. The "Carneca I," discovered along the river in 1940 weighed 428 carats, and is the third largest diamond ever found in Brazil. Two other diamonds discovered in 1971 weighed just over 100 carats. These are the Charneca II and Charneca III, at 107 and 105 carats, respectively.
NK, January 2017
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
Mineral list contains entries from the region specified including sub-localities3 valid minerals.
Detailed Mineral List:
| ⓘ Diamond Formula: C Localities: Reference: Fernandes, A. G., Karfunkel, J., Hoover, D. B., Sgarbi, P. B. de A., Sgarbi, G. N. C., Oliveira, G. D., Gomes, J. C. de S. P., and Kambrock, K, 2014, The basal conglomerate of the Capacete Formation (Mata da Corda Group) and its relation to diamond distributions in Coromandel, Minas Gerais state, Brazil: Brazilian Jour. of Geology, v. 44, no. 1, p. 91-103. |
| ⓘ 'Garnet Group' Formula: X3Z2(SiO4)3 Reference: Fernandes, A. G., Karfunkel, J., Hoover, D. B., Sgarbi, P. B. de A., Sgarbi, G. N. C., Oliveira, G. D., Gomes, J. C. de S. P., and Kambrock, K, 2014, The basal conglomerate of the Capacete Formation (Mata da Corda Group) and its relation to diamond distributions in Coromandel, Minas Gerais state, Brazil: Brazilian Jour. of Geology, v. 44, no. 1, p. 91-103. |
| ⓘ Ilmenite Formula: Fe2+TiO3 Reference: Fernandes, A. G., Karfunkel, J., Hoover, D. B., Sgarbi, P. B. de A., Sgarbi, G. N. C., Oliveira, G. D., Gomes, J. C. de S. P., and Kambrock, K, 2014, The basal conglomerate of the Capacete Formation (Mata da Corda Group) and its relation to diamond distributions in Coromandel, Minas Gerais state, Brazil: Brazilian Jour. of Geology, v. 44, no. 1, p. 91-103. |
| ⓘ Pyrope Formula: Mg3Al2(SiO4)3 Reference: Chaves, M. L. S. C., 2012, Kimberlito Vargem-1 (Coromandel;, MG): bulk sample confirma mineralização diamantifera: Revista Escola Minas, Ouro Preto, v. 65, no. 4, p. 509-511. |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Diamond | 1.CB.10a | C |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Ilmenite | 4.CB.05 | Fe2+TiO3 |
| Group 9 - Silicates | |||
| ⓘ | Pyrope | 9.AD.25 | Mg3Al2(SiO4)3 |
| Unclassified Minerals, Rocks, etc. | |||
| ⓘ | 'Garnet Group' | - | X3Z2(SiO4)3 |
List of minerals for each chemical element
| C | Carbon | |
|---|---|---|
| C | ⓘ Diamond | C |
| O | Oxygen | |
| O | ⓘ Garnet Group | X3Z2(SiO4)3 |
| O | ⓘ Ilmenite | Fe2+TiO3 |
| O | ⓘ Pyrope | Mg3Al2(SiO4)3 |
| Mg | Magnesium | |
| Mg | ⓘ Pyrope | Mg3Al2(SiO4)3 |
| Al | Aluminium | |
| Al | ⓘ Pyrope | Mg3Al2(SiO4)3 |
| Si | Silicon | |
| Si | ⓘ Garnet Group | X3Z2(SiO4)3 |
| Si | ⓘ Pyrope | Mg3Al2(SiO4)3 |
| Ti | Titanium | |
| Ti | ⓘ Ilmenite | Fe2+TiO3 |
| Fe | Iron | |
| Fe | ⓘ Ilmenite | Fe2+TiO3 |
References
Sort by
Year (asc) Year (desc) Author (A-Z) Author (Z-A)Fernandes, A. G., Karfunkel, J., Hoover, D. B., Sgarbi, P. B. de A., Sgarbi, G. N. C., Oliveira, G. D., Gomes, J. C. de S. P., and Kambrock, K. (2014): The basal conglomerate of the Capacete Formation (Mata da Corda Group) and its relation to diamond distributions in Coromandel, Minas Gerais state, Brazil. Brazilian Jour. of Geology, 44(1): 91-103.
Localities in this Region
- Minas Gerais
- Coromandel mining district
- Coromandel
- Santo Inácio River valley
- Coromandel
- Coromandel mining district
Other Regions, Features and Areas containing this locality
South AmericaContinent
South America PlateTectonic Plate
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Santo Inácio River valley, Coromandel, Coromandel mining district, Minas Gerais, Brazil