mine
Enormous Crystal Cave - Naica, Mexico
Apr 25 2011
The Naica Mine of the Mexican state of Chihuahua is a working mine that is best known for its extraordinary selenite crystals. The mine is owned and operated by Industrias Peñoles, a producer of lead, zinc and silver. These caverns were discovered during mining operations and contain crystals of selenite (gypsum) as large as 4 feet (1.2 m) in diameter and 50 feet (15 m) long.
Bogatyr Coal Mine - Highest Coal Production in the World
Apr 13 2011
A strip coal mine “Bogatyr” had been built by 1969 in Ekibastuz, Kazakhstan. In 1985 it reached its highest annual production level – 56.8 million tons of coal. The strip mine of such a high production capacity has been built for the first time in the world and, because of this factor, in 1985 it was put into the Guinness Book of World Records.
World’s Biggest Diamond Mine
Mar 18 2011
What a huge man–The mine is 525m (1,722ft) deep and has a diameter of 1,200m (3,900ft). This massive diamond mine is located in Mirna, Eastern Siberia, Russia.
