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Geotechnical Egineering News tagged with [diamonds]

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Second large diamond in a year unearthed in Sierra Leone
MINING.com   13 November 2017   Sierra Leone   West Africa  
Source: shutterstock_325627796
<p>Another huge diamond has been released from the Earth's clutches following an astounding discovery in the West African country earlier this year.</p> <p>Sierra Leone's Minerals Agency announced on Saturday that a 476-carat diamond was discovered in the ...
Filed under: Mining News
World's second-largest diamond 'found in Botswana'
BBC NEWS   20 November 2015   Botswana   Gaborone  
The stone measures 65mm x 56mm x 40mm in size
<p>The world's second-largest gem quality diamond has been discovered in Botswana, the Lucara Diamond firm says.<br />The 1,111-carat stone was recovered from its Karowe mine, about 500km (300 miles) north of the capital, Gaborone.<br />It is the biggest diamond ...
Filed under: Mining News
Diamond royalties a closely guarded secret in Ontario
CBCnews   12 May 2015   Canada   Ontario  
Rough diamonds from the Victor mine in Northern Ontario. The royalty regime on diamonds has been secret, until now. (Rita Celli/CBC)
<p>Ontario's only diamond mine is known for its exceptional quality stones, but according to official documents, the provincial government made more money on salt royalties in 2013-14 than diamonds.</p> <p>De Beers Canada, which owns the only diamond mine ...
Filed under: Mining News