Showing posts with label minerals. Show all posts
Showing posts with label minerals. Show all posts
Sunday, March 4, 2018

World's 5 Largest Gold Nuggets

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The world’s second largest nugget in existence, the Great Triangle, was excavated in 1842 in the Miass area of the Russian Urals. The tri...
Saturday, April 21, 2012

Mining The Asteroids

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Sean Connery in 1981's 'Outland,' a British thriller that takes place at a mining colony on a Jupiter moon. Warner Bros. Picture...
Thursday, September 8, 2011

Precious Metals On Earth May Have Come From Asteroids

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Artist's impression of the Earth during the period of the terminal bombardment. CREDIT: Julian Baum/Take 27 Ltd Asteroids May Have Broug...
Tuesday, February 23, 2010

Gemfields Discovers 6,225-Carat 'Elephant' Emerald In Zambia

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The emerald has been named 'Insofu', which means 'elephant' in the language of the Bemba people indigenous to the region Fro...
Saturday, January 2, 2010

Concern As China Clamps Down On Rare Earth Exports

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A neodymium magnet, commonly used in motors, loudspeakers and other appliances. Neodymium is a rare earth element. ALAMY From The Independen...
Wednesday, September 30, 2009

Huge 507-Carat Diamond Found In South African Mine

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Petra Diamonds chief executive Johan Dippenaar holds a white diamond weighing 507.55 carats. From New York Daily News: JOHANNESBURG - Petra ...
Monday, February 23, 2009

Unlike Diamonds, Most Minerals Not Forever

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From Live Science: Diamonds may be forever, but that's not true of most minerals. In fact, about two-thirds of the 4,300 known minerals ...
Saturday, February 14, 2009

Scientists Discover Material Harder Than Diamond

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Photo: A diamond ring. Scientists have calculated that wurtzite boron nitride and lonsdaleite (hexagonal diamond) both have greater indentat...
Saturday, November 15, 2008

Artificial Diamonds - Now Available in Extra Large

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From The New Scientist: Diamonds are a girl's best friend, they say - and soon they could be every girl's best friend. A team in the...