Blue diamond with 29.6 carats at South African mine
The company Petra Diamonds discovered one of the rarest stones in the world: a 29.6 carat blue diamond worth around $60 million. The gem was unearthed at the Cullinan mine, in South Africa. The rock, described as an “outstanding vivid blue diamond with extraordinary saturation, tone and clarity”, is the biggest of its kind ever found in the […]
Gold producers in South Africa and over wages
Big ore producers operating in South Africa, such as AngloGold Ashanti, are currently facing strike notices over pay demands, the Association of Mineworkers and Construction Union (AMCU) revealed. This organization represents about 20 percent of South African gold-mining employees and is recalling their right to strike, despite the fact that most gold employees reached an agreement […]
Locked Cycle Testing -Flotation
Flotation Locked Cycle Testing has been the favorite method for arriving at a metallurgical projection from laboratory flotation testing in the mining industry in the last decade, mostly because the final cycles of the test mimic a continuous circuit. The difference is that, in a batch test, “the deportment of the intermediate streams to concentrate […]
Study points to potential water pollution caused by iron mining in Wisconsin
Iron mining activities could be leading to pollution problems in the northern part of the state of Wisconsin. The conclusion in included in a new report disclosed by the Wisconsin Department of Natural Resources (DNR). According to the 97-page study, these mining operations might be responsible for loss of surface and groundwater due to a process known […]
Mining the Moon [infographic]
Almost 45 years after we successfully landed for the first time on the moon, we are now considering the chance of mining Earth’s satellite. But what are we expecting to get from this ambitious project? Take a look at this fact sheet brought to you by Mining Examiner and you will find out the answer.
The 12 Coldest Canadian Mines
If you are in the Northern hemisphere and you think it’s cold outside, take a look at these Canadian mines and try not to freeze! 1. Meadowbank Average temperature in the mine during the coldest month: -35.4 This silver and gold mine, managed by the majority owner Agnico Eagle Mines, is located 70 kilometers north of Baker Lake. […]
The 5 most colourful minerals on Earth [infographic]
Did you ever look at a painting and wondered where the artist got that specific shade? Well, the answer is probably in the mineral world. If you want to colour your day, take five minutes to learn more about the five most colourful minerals on the planet. From the valuable diamond to the abundant quartz, […]
Chile’s port strike affects copper exports
A two-week strike at the Angamos port is severely affecting Chile’s copper exports and the main companies operating in the country. Almost $130 million worth of Codelco’s December income has been sliced due to the tie-up, now joined by six other Chilean terminals. Workers at the seaports of Iquique, Antofagasta and San Antonio, for instance, stopped […]
Yamana Gold’s Cerro Moro Mine by Numbers [infographic]
Despite the fact that the mining industry is living dark times, especially due to the downfall of gold’s price, the company Yamana Gold is definitely developing its Cerro Moro gold and silver project. The deposit, located in the southern Argentine province of Santa Cruz, will move forward thanks to an initial investment of $450 million. […]
Explosions kill four Chinese miners in three days
Different explosions in two mines located in Central and southwest China killed four workers during the weekend. The news agency Xinhua, quoted by Mining.com, reports the first accident happened on Friday (3) morning, in central China’s Wufeng county, Hubei province. A gas explosion made three victims. Two days after the first incident, on Sunday (5), a second […]