Sauer (1982): "In Brazil, although more than 300 kimberlites have been found, none has provided a viable diamond yield. Mining has therefore always taken place in alluvium, eluvium and ancient agglomerates. Mechanization is hindered by an incomplete knowledge of deposit configuration. The only location where mechanization has been possible is at Tejucana, on the Jequitinhonha."
Regions containing this locality
|South America Plate||Tectonic Plate|
Select Mineral List TypeStandard Detailed Strunz Dana Chemical Elements
Detailed Mineral List:
| ⓘ Diamond|
Reference: Sauer, Jules Roger (1982) Brazil, Paradise of Gemstones. Gemological Institute of America, 135 pp. (p. 18).
List of minerals arranged by Dana 8th Edition classification
|Group 1 - NATIVE ELEMENTS AND ALLOYS|
|Semi-metals and non-metals|
This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.
Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org
541 - 1000 Ma
|Neoproterozoic crystalline metamorphic rocks|
Age: Neoproterozoic (541 - 1000 Ma)
Lithology: Low grade unclassified metamorphic rock
Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529.