Tested with XRF gun, had a spot of copper on first picture and a touch of gold color, these are very rare , Silver is either found as powder ore or pure crystals, in the mines , So this is a unique specimen. The item “Large Genuine Silver Nugget 40.02 Grams Very Rare” is in sale since Sunday, August 23, 2020. This item is in the category “Coins & Paper Money\Bullion\Gold\Nuggets”. The seller is “george2225-760″ and is located in Escondido, California. This item can be shipped to United States, all countries in continental Asia, Canada, United Kingdom, Germany, France, Australia, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Greece, Portugal, Cyprus, Slovenia, Sweden, Belgium, Ireland, Netherlands, Poland, Spain, Italy, Austria, Bahamas, Mexico, New Zealand, Switzerland, Norway, Croatia, Chile, Colombia, Barbados, Bermuda, Bolivia, Ecuador, Egypt, French guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Liechtenstein, Luxembourg, Monaco, Martinique, Nicaragua, Peru, Paraguay, Reunion, Uruguay.