Murowa diamond mine Murowa diamond mine The Murowa diamond mine is a diamond mine located in Mazvihwa, south central Zimbabwe, about 40 kilometres from the asbestos mining town of Zvishavane in the Midlands province. The mine is majority owned and operated by the Rio Tinto Group, which also owns the Argyle diamond mine in Australia and part of the Diavik Diamond Mine in Canada. The mine is a combination of open pit and underground construction; current estimates put construction costs at $61 million USD and mine reserves are 19 million tonnes of ore, with an ore grade of per tonne. Murowa consists of
Catoca diamond mine at the average rate of US$62.23, a volume that represented about 78 percent of the amount sold by the diamond companies around the country. The note states that as a result of the processing of the ore, the company obtained a total of 7.5 million carat that permitted to establish the operational costs. In 2012 the mine produced 6.5 million carats out of 10 million metric tons of ore production. The Catoca diamond deposit occurs in a kimberlite pipe. Catoca diamond mine The Catoca diamond mine is the fourth largest diamond mine in the world, and is located in Angola.