Pennyweight Act of 1878; only the Troy ounce and its decimal subdivisions remained official. The Troy ounce enjoys a specific legal exemption from metrication in the UK. The pennyweight is the common weight used in the valuation and measurement of precious metals. Jewellers use the pennyweight in calculating the amount and cost of precious metals used in fabricating or casting jewellery. Similarly, dentists and dental labs still use the pennyweight as the measure of precious metals in dental crowns and inlays. Pennyweight and grains are still used to weigh gooseberries in competitions in Cheshire, northwest UK. Over the Pennines in Yorkshire
Wheaton Precious Metals Corporation 2017 Silver Wheaton reported attributable production totaling 6.5 million ounces of silver and 84,900 ounces of gold, equal to 12.5 million silver equivalent ounces. The Company reported net earnings for the quarter of $61 million or $0.14 per share. On May 10, 2017, Silver Wheaton says shareholders approved a company name change to Wheaton Precious Metals, effective immediately. Silver Wheaton was established in 2004. It was previously controlled by Goldcorp until December 7, 2006 when Goldcorp's sale of 18 million shares reduced its ownership to 48%. On February 14, 2008 Goldcorp divested itself completely of Silver Wheaton, selling 108 million