Tuesday, November 22, 2011

Oldest diamonds discovered in the world

Geology - In Australia, researchers have found diamonds, which are
more than four billion years old, making it only slightly younger than
the Earth itself as jewelry are not good are the microscopically small
stones. Nevertheless, they are very valuable for the research because
they allow conclusions about the early history of the earth.
Seven million years could be measuring wrong, but something like a
huge uncertainty, disappears in the face of the dimensions at issue
here: 4.252 billion years old are the diamonds, the researchers at the
University of Muenster have been excavated in Australia. "We have
worked with the diamond carbon, the oldest relic in hand," said the
mineralogist Thorsten Geisler. Carbon is a basic building block of
life.
Report their find Geisler and his collaborator Martina Menneken in the
British science journal "Nature" (vol. 448, p. 917). Although diamonds
can not be dated directly, but these pieces of jewelry from the early
history of the earth in the mineral zircon included. And the age of
zircons can be determined absolutely.

Thursday, September 1, 2011

diamond mining equipment for west sahara

Rich deposits
Commodity discoveries in Western Sahara
22nd August 2011 18:10
Diamonds and gold complicate simmering conflict
Rabat / Granada - Rich deposits of diamonds, gold, uranium, copper, nickel, zinc, lead and cobalt were discovered by Metalex Ventures Canadian mining companies in the Western Sahara occupied by Morocco. Mainly in the controlled by the Polisario Front independence movement, Democratic Republic of Western Sahara as well as in border regions of Mauritania. Morocco is located in the state for decades in conflict with the Polisario Front.
In 2005, the Canadian Government of Morocco had been entrusted with the search. Over four months of flight hours, the Canadians will still need to create a space of more than 17,000 square kilometers in the air to map by means of magnetic and radiological measurements.
A 2.6 billion years old crater of an extinct volcano to contain kimberlite diamonds and gold mine of Tasiast (Mauritania), 21 million ounces of precious metal. The also will need diamond mining equipment to mine in that area.

Diamonds and uranium production in Namibia is collapsing

Substantial investment required
Diamonds and uranium production in Namibia is collapsing
Written by Editor • 31 August 2011 • Print version

The diamond production in Namibia was in the second quarter of this year, more than halved and is now only at 208 000 carats, the expert report of Capricorn Investment Holdings. On average, the production from April to late June, only 45% of the emissions of the same quarter of 2010 had amounted. This was the lowest production level since the first quarter of 2009, it said.

In the past two years is the diamond production fell substantially, mainly due to lower demand resulting from the recession of 2008. According Capricorn Namibia will also soon reach the maximum production potential. A problem for diamonds for sale in NamibiaTo prevent this significant investment in technology and infrastructure are necessary, the mining companies had not been assured.