OVERVIEW OF KIMBERLITO CATOCA

Catoca, which means lost in the local language, is the fourth largest mine in the world to explore the open sky and the largest company in the diamond sub-sector in Angola, being responsible for the extraction of more than 75% of Angolan diamonds. With the beginning of the Open Exploration since 1997, the current depth (May 2019) is maximum:

245 m, nominal 185 m

Mine diameter 1670 m

Countertop height: 10 to 60 m

Current surface area of ​​the chimney 45.5 hectares, initial area (1997) 64 hectares

Ramp width

Verge width: 15 - 20 m

Ramp width

Verge width: 15 - 20 m

Current surface area of ​​the chimney 45.5 hectares, initial area (1997) 64 hectares