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Santo Inácio River valley, Coromandel, Minas Gerais, Brazili
| Regional Level Types | |
|---|---|
| Santo Inácio River valley | Valley |
| Coromandel | Municipality |
| Minas Gerais | State |
| Brazil | Country |
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Latitude & Longitude (WGS84):
18° 32' 39'' South , 47° 1' 50'' West
Latitude & Longitude (decimal):
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 |
| ⓘ 'Garnet Group' Formula: X3Z2(SiO4)3 |
| ⓘ Ilmenite Formula: Fe2+TiO3 |
| ⓘ Pyrope Formula: Mg3Al2(SiO4)3 |
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 | |||
| ⓘ | 'Garnet Group' | - | X3Z2(SiO4)3 |
List of minerals for each chemical element
| C | Carbon | |
|---|---|---|
| C | ⓘ Diamond | C |
| O | Oxygen | |
| O | ⓘ Ilmenite | Fe2+TiO3 |
| O | ⓘ Pyrope | Mg3Al2(SiO4)3 |
| O | ⓘ Garnet Group | X3Z2(SiO4)3 |
| Mg | Magnesium | |
| Mg | ⓘ Pyrope | Mg3Al2(SiO4)3 |
| Al | Aluminium | |
| Al | ⓘ Pyrope | Mg3Al2(SiO4)3 |
| Si | Silicon | |
| Si | ⓘ Pyrope | Mg3Al2(SiO4)3 |
| Si | ⓘ Garnet Group | X3Z2(SiO4)3 |
| Ti | Titanium | |
| Ti | ⓘ Ilmenite | Fe2+TiO3 |
| Fe | Iron | |
| Fe | ⓘ Ilmenite | Fe2+TiO3 |
Localities in this Region
- Minas Gerais
- Coromandel
- Santo Inácio River valley
- Coromandel
Other Regions, Features and Areas containing this locality
Brazil
- Minas Gerais
- Coromandel mining districtMining District
South AmericaContinent
South America PlateTectonic Plate
- Saõ Francisco CratonCraton
This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to
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for access and that you are aware of all safety precautions necessary.
References
Santo Inácio River valley, Coromandel, Minas Gerais, Brazil