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By September 2013, the mine had its first production, a copper-gold concentrate. [1] Mount Milligan Mine reached commercial production as of February 18, 2014, which means that the mill operated at 60% planned capacity throughput for 30 days. [1] Industrious activities were sustained through 2014 and are consistent today. [1]
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A specimen of stibnite. The Stibnite Mining District sits atop the Idaho Batholith, one of the signature features of Idaho’s unique geology.The Idaho Batholith is nearly 14,000 square miles (36,000 km 2) of granite, formed from the collision of the oceanic plate and the North American Plate around 100 million years ago during the Cretaceous period. [10]
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KTVB was the first Boise station to present an hour of local early evening news when it debuted the 5 p.m. newscast Idaho at Five in 1984, [60] first with weekend morning news in 1992, [61] The dominance in news ratings has continued; for instance, in November 2010, each of KTVB's local newscasts had more viewers than their competition combined.
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The highest karat version of rose gold, also known as crown gold, is 22 karat. Amongst the alloys made of gold, silver, and copper, the hardest is the 18.1 K pink gold (75.7% gold and 24.3% copper). An alloy with only gold and silver is the hardest at 15.5 K (64.5% gold and 35.5% silver).