The temperature has been so relentlessly hot this week that the government imposed a four-day mandatory holiday beginning Thursday and urged residents to stay out of the sun. At its most brutal, the so-called feels-like temperature has hit a staggering 159 degrees Fahrenheit, according to The Weather Channel.
12K Red gold: 50% gold and 50% copper. Up to 15% zinc can be added to copper-rich alloys to change their color to reddish yellow or dark yellow. During ancient times, due to impurities in the smelting process, gold frequently turned a reddish color.
Rose Gold vs. Yellow Gold. Rose gold, red gold, and pink gold are made from a gold and copper alloy. Since copper has a bold pinkish-orange color, adding this alloy to gold gives the gold a beautiful pinkish gold color. 18K rose gold, 18K red gold, and 18K pink gold contain 75% gold. 14K rose gold, 14K red gold, and 14K pink gold contain 58% gold. The remaining percentage is made up of copper or copper and silver.